JPS6323022B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch circuit controller (hereinafter referred to as a circuit controller) used for controlling the display of a traffic signal by checking the opening direction of a turnout used on a railway track. It is.

A turnout switching device (hereinafter referred to as a switch) is installed at a turnout on a railway track to change the direction of travel of a train. In this case, it is detected that the switch has turned in the specified direction and the switch has been turned normally without any gap between the tongue rail and the basic rail of the turnout (adhesion verification), and then the signal on the traffic light is used as a proceeding signal. In addition, when using electric switch machines, methods such as lighting up these indicator lights installed at signal handling stations are used to indicate when the switch has switched and completed its operation. A method such as detecting this and opening the motor circuit is required. The circuit controller has a plurality of electrical contacts that operate in conjunction with the switching operation of the tongue rail of the turnout, and is used for the purpose of checking the opening direction of the turnout and adhesion depending on the open/closed state of the contacts. For example, if a malfunction occurs such as the rod or pin connecting the tongue rail and the switch being broken or falling off, the opening direction of the turnout will not match the switching direction of the switch, and the tongue It is possible to detect when an obstacle such as a stone is caught between the rail and the basic rail and that it has opened, and to control the traffic signal to a stop signal to prevent dangerous situations.

By the way, in conventional circuit controllers, the body is attached directly to the base rail, and just before the tongue rail is bonded to the base rail, the shaft, which is always biased by a spring force, is pushed in at the abdomen of the tongue rail, and the shaft is pressed in. A device (YS type electric switch circuit controller) that opens and closes a built-in switch by operation is known. However, in a circuit controller with this structure,
Because the shaft is always pressed against the tongue rail by the force of the spring, the shaft bends due to excessive stress received from the vibration of the tongue rail while the train is passing, so when the tongue rail is turned in the opposite direction again, the shaft will bend. A non-return phenomenon sometimes occurred. In addition, in this type of circuit controller, switches for detecting the normal position and reverse position of the turnout are installed by drilling a hole in the abdomen of the basic rail so that its axis faces the tongue rail through the basic rail. There were also problems with the installation method.

Furthermore, in another type of circuit controller, the body is mounted on a sleeper outside the turnout gauge, and the arm outside the body and the tongue rail are connected with a connecting rod, so that the arm axis changes as the tongue rail changes. Some types have a structure in which the cam contact opens and closes via a gear that rotates (approximately 80 degrees) and is linked to this rotation. but,
Although this type of circuit controller eliminates the above-mentioned problems, it is difficult to check the adhesion due to its operating mechanism.

The circuit controller according to the present invention solves the above problem, and is connected to the tongue rails 29, 29 of a turnout, and moves in a straight line in the forward or reverse direction in conjunction with the switching operation of the turnout. a shaft 3 to be moved; a pair of stereotaxic verification mechanisms A and anti-position verification mechanisms B provided at symmetrical positions on the shaft 3; fixed to the shaft 3 and capable of normal movement of the shaft 3 in the forward or reverse direction; A pin 20 that operates the stereotactic inspection mechanism A or the anti-position inspection mechanism B by stroke displacement.
and a stereoposition verification switch 23a and a reverse position verification switch 23b that issue a detection signal for detecting the orientation and reverse position change of the turnout in response to the operation of the stereoposition verification mechanism A or the reverse orientation verification mechanism B, The mechanism A and the anti-position checking mechanism B are each equipped with an exterior capable of sliding in the axial direction on the shaft 3 within a predetermined range, and have the pin 2 in the shaft hole.
Holding cylinder 4 equipped with a protruding edge that abuts 0 from the inside
a, 4b, and screws 9a, 9b on the outer periphery of the holding cylinders 4a, 4b.
Adjustment cylinders 10a, 10b are screwed together so as to be adjustable in movement in the axial direction; and adjustment cylinders 10a, 10b are attached to the holding cylinders 4a, 4b so as to be adjustable in movement, and are locked to the adjustment cylinders 10a, 10b to prevent them from rotating. Locking pieces 16a, 16b, which are externally mounted on the adjustment tube, and which are attached to the switches 23a, 16b.
The operating plates 11a and 11b facing the 23b, and the operating plates 1 that are locked to the holding cylinders 4a and 4b,
Spring 13a, 13b which applies the pressure necessary for the operation of switches 23a, 23b to 1a, 11b, and spring 2 which comes into contact with the projecting edges 19a, 19b and urges the holding tubes 4a, 4b toward the pin 20 side.
2a, 22b, and the relationship between each spring and the operating force of the switch is as follows: Spring pressure of springs 22a, 22b>Springs 13a, 1
This is a point circuit controller characterized in that the spring pressure of switch 3b is set higher than the operating pressure of switches 23a and 23b. With this invention, adhesive verification can be performed reliably, all differences in the operating stroke of the tongue rail depending on the type of turnout can be covered with a simple adjustment, the structure is simple, it can be made compact, and it is easy to install. It also has the characteristics of being maintenance-free without causing safety-related dangers. The details of the circuit controller according to the present invention will be explained below with reference to the drawings.

FIG. 1 is a plan view of a turnout equipped with a circuit controller according to the present invention.

In the figure, 33 and 33 are basic rails, 29 and 29 are tongue rails, 35 is a tie bar, 34 is a switch adjuster, 30 is a front rod, 36 is a connecting rod, and 1 is a circuit controller body according to the present invention having a shaft 3. . Tongue rails 29, 29 are tie bars 3
It is connected to a switch (not shown) via a switch adjuster 34 via a switch adjuster 34, and performs a switching operation in conjunction with the operation of the switch. The signal is transmitted to the shaft 3, which opens and closes the built-in constant/reverse position verification switch.

2 to 5 show detailed structural views of the circuit controller main body 1 according to the present invention.

In each figure, bearings 2, 2 are provided on both sides of the casing 1a to hold a shaft 3 that can move forward and backward as the turnout changes, and the turnout is placed at a symmetrical position on the shaft 3. A stereotaxic verification mechanism A and a reverse orientation verification mechanism B are provided. Since both of the inspection mechanisms have the same structure, the stereotactic inspection mechanism A will be described below, and the same structural parts of the anti-orientation inspection mechanism B will be given the same numbers as those of the stereotactic inspection mechanism A with the suffix "b" and their explanation will be omitted. The stereotaxic checking mechanism A has the following configuration.
That is, the holding cylinder 4a is externally mounted around the shaft 3 which is held by the bearings 2 and 2 and can move forward and backward, and the shaft 3 and the holding cylinder 4a can freely move on the shaft 3 without being fixed. A flat surface 5a shown in FIG. 7 is formed on the lower circumferential surface of the holding cylinder 4a, and is supported so as to be able to slide on a seating surface 6 formed on the bottom surface of the casing 1a. The holding cylinder 4a is prevented from rotating, and the stopper 7 protruding from the seating surface 6 is locked in the notch 8a at the end of the holding cylinder 4a, and both the holding cylinders 4a and 4b are held at the center of the casing 1. Match. The holding cylinders 4a and 4b are supported by springs 22
Since it is urged toward the center of the main body by a and 22b, it comes into contact with the side surface of the stopper 7, stops and is held. Further, a screw 9a is cut on the outer peripheral surface of the holding cylinder 4a, and the adjusting cylinder 1 is attached to this screw 9a.
0a are screwed together, and an operating plate 11a is slidably mounted on the outer peripheral surface of the adjustment cylinder 10a.
A spring 13a is interposed between the flange 12a of a and the operating plate 11a to bias the operating plate 11a toward the axial end and to hold the operating plate 11a with a stopper 25a for preventing the operating plate 11a from coming off. The flange 12a of the adjustment tube 10a is provided with recessed notches 14a, 14a, . . . at an angular interval of 90 degrees as shown in FIG. The locking piece 16a is arranged along the axial direction on the outer peripheral surface of the holding cylinder 4a, and is fitted into a guide groove 17a formed on a part of the peripheral surface of the holding cylinder 4a, and is provided on the locking piece 16a. A bolt 32a is passed through the elongated hole 18a and fastened to the holding tube 4a, thereby fixing the locking piece 16a to the holding tube 4a. This locking piece 16a serves to prevent the adjustment cylinder 10a from rotating, and the elongated holes 18a only need to have a length necessary to remove the pawl 15a from the recessed notch. For the sides, the relationship with the adjustment cylinder and details of the structure are also shown. In addition, a single pin 20 protruding from the outer circumferential surface of the shaft 3 is implanted, and a keyway-shaped concave groove 21a is provided in the holding cylinder 4a along its axial direction as shown in FIG. Pin 20 in this
are movably fitted into each other, and a projecting edge 19a is provided at the deepest end of the groove 21. As a result, the shaft 3 moves within the shaft hole of the holding cylinder 4a, and the pin 20 moves to the projecting edge 19a.
, the holding cylinder 4a then moves together with the shaft 3 toward the outside of the case. Reversal checking mechanism B
The same is true for the side, and the shaft 3 moves in the opposite direction in the shaft hole of the holding cylinder 4b, and the pin 20 moves into the projection 19b.
When the holding cylinder 4b comes into contact with the shaft, the holding cylinder 4b thereafter moves together with the shaft. That is, the holding cylinders 4a, 4b receive the pressing force of the respective springs 22a, 22b, and the notches 8a,
8b is crimped to the stopper 7 and kept at the center of the main body, but when connected to the turnout, the shaft 3 moves forward (moves to the right in FIG. 2) due to the switching operation of the tongue rail, and the pin 20 When the pin 20 comes into contact with the flange 19a, the holding cylinder 4a moves together with the shaft 3. Conversely, when the shaft 3 moves back, the pin 20 comes into contact with the flange 19b, so the holding cylinder 4b moves integrally with the shaft 3. , and is always kept in either state. On the other hand, the operating plate 1 corresponds to the moving direction of each holding cylinder 4a, 4b.
Switch 23 for stereotaxic verification facing the front of 1a
Similarly, a switch 23b for checking the opposite position is installed facing the front of the operation plate 11b, and each checking switch 23a, 23b is connected to the mounting frame 31a, 31.
b, and this edge serves as a stopper for the operating plates 11a and 11b. That is, when the shaft 3 changes to the orientation direction (moves to the right in FIG. 2) and stops due to the switching direction of the turnout, the spring pressure of the spring 22a is greater than that of the spring 13a, and the spring pressure of the spring 13 is greater than that of the spring 13a.
Since the spring pressure of a is greater than the operating pressure of the checking switch 23a, the pin 20 and the protrusion 19a
, the stereotactic verification mechanism A is pushed in the same direction, and the operating plate 11a pushes the stereotactic verification switch 23a to operate its contacts, presses the edge of the mounting frame 31a, and stops, and similarly the turnout is moved in the opposite direction. At some times, the contacts of the reverse position checking switch 23b are activated and then stopped. In addition, as shown in each figure, the casing 1a
includes a lid 25, a hinge 26, and a clamp 27,
Terminal boards 24a and 24b are also provided inside.

In an embodiment, the operation procedure when a turnout in the normal position is changed to the reverse position will be explained. The state of the tongue rail shown in FIG. 1 shows when the turnout 28 is switched to the normal position, and at this time the shaft 3 of the circuit controller 1 moves to the right in the figure, and the normal position checking mechanism A also moves to the pin 2.
0, the localization verification switch 23a is pressed to the right.
is working. Since the shaft 3 is pulled in the same direction and begins to move inside the casing 1a when the turnout starts the switching operation, the pin 20 also moves along the ridge 1 of the holding cylinder 4a.
Move to the left together with 9a. As mentioned above, the pressure of each spring is in the relationship 22a>13a>23a, so of the compressed springs, spring 22a gradually begins to expand, pushing the holding cylinder 4a to the left and screwing it into place. The adjustment cylinder 10a that is also moved to the left. At the same time, the spring 13a, which is in a compressed state by pressing the operating plate 11a, also begins to expand, and the edges of the operating plate 11a and the mounting frame 31a, which were in contact with each other, begin to separate, and when they have moved a certain distance, the localization verification switch 23a is turned off. Then, it is detected that the gap between the tongue rail and the basic rail has opened, and the operating plate 11a and the contact of the stereotactic verification switch 23a, which were in contact with each other, begin to separate, and the operating plate 11a moves between the flange 12a of the adjustment tube 10a and the stopper 25a. Spring 13 between
It is held pressed in a and continues to move further to the left. The stereotaxic inspection mechanism A moves integrally with the pin 20 implanted in the shaft 3, and the holding cylinder 4a is in contact with the end notch 8a and the stopper 7 protruding from the bottom of the casing 1a, and is held at the center of the casing 1a. Although the pin 20 stops moving, the pin 20 continues to move inside the groove 21a provided along the shaft hole of the holding cylinder 4a, regardless of each holding cylinder, and after passing through the center of the casing, it moves to the holding cylinder on the reverse inspection mechanism B side. 4b, and when it moves a certain distance (the position just before the tongue rail of the turnout completes the conversion to the opposite side), it comes into contact with the ridge 19b of the holding cylinder 4b, and from then on, the holding cylinder 4b move to the left while compressing the spring 22b. As the anti-position checking mechanism B moves to the left, the operating plate 11b eventually comes into contact with the touch of the anti-position checking switch 23b, and presses the contact to turn the switch "on", detecting that the tongue rail has changed to the anti-position side. As the operating plate 11b comes into contact with the edge of the mounting frame 31b, it compresses the spring 13b, and eventually the turnout completes its reverse rotation and stops. As described above, when the turnout is switched to the stereotaxic side, the stereotaxic verification switch 23a is turned on, and when the switching operation to the reverse orientation is started and the tip of the tongue rail opens, the stereotaxic verification switch 23a is turned on. 23a is “off”
By turning on the reversing check switch 23b immediately before the turnout ends, it can be confirmed that the turnout can be changed normally and that the gap between the tongue rail and the basic rail has been bonded without opening. For verification purposes, the operating position of each switch must be adjusted and set to match the stroke of its turnout.

The adjustment procedure for the stereotaxic verification mechanism A will be explained below. First, loosen the bolt 32a and lock the locking piece 16a.
Adjustment cylinder 10a flange 12a recessed notch 1
4a, and move the adjusting cylinder 10a back and forth in the axial direction while rotating it along the screw 9a on the circumferential surface of the holding cylinder 4a, which is stopped from rotating by the seating surface 6 on the bottom of the casing 1a. The relative position of the plate 11a, that is, the localization verification switch 23
After adjusting the relative position of the operating plate 11a with respect to the flange 12, the claw 15a of the locking piece 16a is
a into the recessed notch 14a, and then tighten the bolt 32.
Tighten and secure a to complete the adjustment. In other words, fine adjustments can be made by the pitch of the screws 9a cut into the circumferential surface of the holding cylinder 4a and the number of recessed notches provided on the circumference of the flange 12a of the adjusting cylinder 10a. This is possible by determining the adjustable length between the screw 9a cut on the outer circumferential surface of the tongue rail 4a and the adjustment tube 10a, and the opening of the tongue rail can be detected reliably.

As described above, the present invention has a single pin 20 implanted in the shaft 3 that is directly connected to the turnout and operates, and the pin 20 is used to verify the position of the turnout immediately before the turnout is switched between normal and reverse positions by reciprocating the shaft 3. Since each switch 23a, 23b is actuated by feeding the A or reverse checking mechanism B, both checking mechanisms A and B can be installed in a space that is about half of the stroke of the shaft 3, making it possible to downsize. . In addition, the stroke difference of the shaft 3 depending on the type of turnout can be easily adjusted by placing an operating plate that can be adjusted between the holding cylinders 4a and 4b in contact with the front of each reference switch 23a and 23b, so that the operating position of the switch can be easily adjusted. can be adjusted, and the adhesion of the tongue rail can be checked reliably. Furthermore, each verification switch is of a sealed type, making it highly reliable.
Therefore, maintenance can be streamlined, and installation work can be made easier by making it smaller.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a turnout equipped with the circuit controller of the present invention, Fig. 2 is a plan view of an embodiment of the circuit controller of the present invention with the lid removed, and Fig. 3 is a plan view of the branch switch installed with the circuit controller of the present invention.
Fig. 4 is a sectional view taken along the - line in Fig. 3, Fig. 5 is a sectional view taken along the - line in Fig. 3, and Fig. 6 is a sectional view taken along the - line in Fig. 3.
The figure is an enlarged rear view of the operating plate, and FIG. 7 is an enlarged sectional view of the holding cylinder. 1...Circuit controller, 1a...Casing, 3...
...Shaft, 4a, 4b...Holding tube, 9a, 9b...Screw, 11a, 11b...Movement plate, 13a, 13b
... Spring, 19a, 19b ... Projection, 20 ... Pin, 23a ... Localization detection switch, 23b ...
Switch for detecting reverse position, 28... Turnout, 29...
Tongue rail, A...stereotaxic inspection mechanism, B...opposite inspection mechanism.

Claims (1)

[Scope of Claims] 1. A shaft 3 connected to the tongue rails 29, 29 of the turnout and linearly moved in the forward or reverse direction in conjunction with the switching operation of the turnout between normal and reverse positions; a pair of stereotaxic verification mechanisms A and anti-position verification mechanisms B provided in symmetrical positions above; Pin 20 for operating the anti-position checking mechanism B
and a stereoposition verification switch 23a and a reverse position verification switch 23b that issue a detection signal for detecting the orientation and reverse position change of the turnout in response to the operation of the stereoposition verification mechanism A or the reverse orientation verification mechanism B, The mechanism A and the anti-position checking mechanism B are each equipped with an exterior capable of sliding in the axial direction on the shaft 3 within a predetermined range, and have the pin 2 in the shaft hole.
Holding tubes 4a, 4b equipped with protruding edges 19a, 19b that abut 0 from the inside, and screws 9a, 9b on the outer periphery of the holding tubes 4a, 4b.
Adjustment cylinders 10a, 10b are screwed together so as to be adjustable in movement in the axial direction; and adjustment cylinders 10a, 10b are attached to the holding cylinders 4a, 4b so as to be adjustable in movement, and are locked to the adjustment cylinders 10a, 10b to prevent them from rotating. Locking pieces 16a, 16b, which are externally mounted on the adjustment tube, and which are attached to the switches 23a, 16b.
The operating plates 11a and 11b facing the 23b, and the operating plates 1 that are locked to the holding cylinders 4a and 4b,
Spring 13a, 13b which applies the pressure necessary for the operation of switches 23a, 23b to 1a, 11b, and spring 2 which comes into contact with the projecting edges 19a, 19b and urges the holding tubes 4a, 4b toward the pin 20 side.
2a, 22b, and the relationship between each spring and the operating force of the switch is as follows: Spring pressure of springs 22a, 22b>Springs 13a, 1
3b spring pressure>operating pressure of switches 23a and 23b.