JP2633710B2 - Lock position detection device for electric point machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lock can that is driven by a tongue rail displacement when a tongue rail of a track turnout is changed between a normal position and a reverse position. The present invention relates to a lock position detecting device for an electric pointing machine having a lock piece that fits into a notch groove of a lock can and locks it.

"Prior art" The electric switch is provided with an operation can and a lock can, and the operation can is used to convert the tongue rail, and the lock can holds the converted tong rail. And lock it.

The lock can is provided with a notch groove, and the lock is locked by fitting a lock piece into the notch groove.

It is necessary that the fitting relationship between the lock piece and the notch groove of the lock can always be appropriately maintained, and the deviation from the center of the notch groove of the lock piece is maintained to be within a specified value.

In a conventional point machine, the relative relationship between the lock piece and the notch groove of the lock can is monitored by a photoelectric detector, and an alarm is issued when the deviation exceeds a specified value.

[Problem to be Solved by the Invention] However, in such a conventional technique, no alarm is issued if the value is within a specified value, so that the positional relationship between the lock piece and the lock can is sufficiently safe. Is it in
It was not possible to predict whether the warning was about to be issued, and the warning was issued suddenly, so that there were cases where it was difficult to respond and the maintenance efficiency was reduced.

The present invention has been made in view of such a conventional problem, and it is possible to constantly monitor the positional relationship between a lock can and a lock piece of an electric switch, and to facilitate maintenance. It is an object of the present invention to provide a lock position detecting device for an electric pointing machine as described above.

"Means for Solving the Problems" The gist of the present invention to achieve this object is to follow the displacement of the tongue rail when the tongue rail of the turnout of the line is switched between the localization and the inversion. To make lock tablets (5
0), and a lock position detecting device of an electric pointing machine having a lock piece (21, 22) fitted and locked in the notch groove (53, 54) of the lock can (50), A detection plate (45) is fixed to one of the lock can (50) or a member interlocked therewith and the main body of the point machine, and a detection unit (47) is provided on the other, and the detection unit (47) A plurality of detectors (49a to 49h) having optical fibers for light emission and light reception facing each other are arranged in a direction intersecting the direction of displacement of the lock can (50). ) Includes the plurality of detectors (49a to 49a).
h) providing a plurality of parallel slit holes extending in the direction of displacement of the lock can (50) so that the presence or absence of the hole at the position corresponding to h) represents the code; and the plurality of detectors (49a to 49h). Wherein the code detected in (1) is converted into a signal of a plurality of bits to correspond to a position signal indicating a displacement in the direction of displacement of the lock can (50).

[Operation] When the tong rail of the turnout of the track is changed between the normal position and the inverted position by the above-mentioned point machine, the lock can slides vertically in accordance with the change of the tongue rail, and when the change is completed, the chain lock is moved. The lock piece fits into the notch groove of the lock can and is locked.

At the time of conversion, the lock can or a member interlocked with the lock can be relatively displaced from the main body of the switch, and the detection plate fixed on one side and the detection unit provided on the other side can be relatively displaced accordingly.

The plurality of detectors of the detection unit are relatively displaced along the plurality of code rows overlapping the plurality of stages of the detection plate in the direction of displacement of the lock can along with the conversion, and when the conversion is completed, the plurality of codes are output. Stop on a row.

At this time, the plurality of detectors of the detection unit read and output a position signal of a plurality of bits from a plurality of code strings on the detection plate as a signal representing a displacement in the displacement direction of the lock can.
This position signal indicates the relative positional relationship between the lock can or the member associated therewith at the time of the change and the main body of the switch.

It is possible to detect and monitor the displacement of the lock position of the lock can by the position signal, and when it exceeds the specified value, it is necessary to know whether or not it is close to the specified value and to determine the necessity of maintenance. I can foresee.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

 1 to 6 show an embodiment of the present invention.

As shown in FIG. 5, the electric switch 10 is provided beside the branching device P of the railway. The branching device P is configured such that a tongue rail T is convertably provided on a main rail R.

The electric point machine 10 is connected to the tongue rail T to perform a conversion operation, and an operation can 30 that is provided in parallel with the operation can 30 and has an end connected to the tongue rail T so as to follow the tongue rail T, A lock can 50 that locks between the localization and the inversion is provided on the point machine case 11 so as to be slidable.

As shown in FIG. 2, the lock can 50 is provided with a stereotactic side canister 51 and an invertible side canister 52 arranged side by side to adjust the position between the stereotactic side cannula and the stereotactic side cannula. The opposite side canister 52 is integrally fixed outside the figure, and the relative position can be adjusted at the fixed portion.

Stereotaxic lock 51
Notch groove 5 in which 1 and counter lock piece 22 fit
3,54 are engraved respectively.

The lock detectors 40a and 40b are mounted on the switch case 11 of the electric switch 10 so as to correspond to the cutout grooves 53 and 54 of the stereotactic side switch 51 and the opposite side switch 52. . Lock detector 40a,
Reference numerals 40b each protrude the end of the detection rod 42 from one end of the housing 41.

Pushing blocks 55 and 56 that push the detection rods 42 and 42 of the lock detectors 40a and 40b at the time of the switching operation include a localization side 51 and an opposite side 52.
Each is fixed.

The lock detector 40a and the lock detector 40b have the same configuration and, as shown in FIG. 3 and FIG.
An end of the detection rod 42 is urged so as to protrude by an urging spring 43 stretched between the housing 42a and the housing 41.

The detection rod 42 is a member that interlocks with the lock can 50 at the time of the switching operation, and a detection plate 45 is fixed to an intermediate portion of the detection rod 42.

The detection plate 45 has four code strings corresponding to four bits as shown in FIG. 6 in the direction of displacement of the lock can 50 accompanying the conversion.
45a to 45d are provided. A plurality of code rows 45a to 45d overlapping in four stages are provided with single-point slit holes corresponding to the position of the lock can 50 in the turning direction and representing a position signal according to the type of code represented by 4 bits. A code display is provided.

Groove 47a between detection plates 45 provided with code rows 45a to 45d
A detection unit 47 is provided in the housing 41 so that the detection unit 47 can be inserted and displaced. The detection unit 47 is a member that is fixed to the switch case 11 of the electric switch 10 and does not move.

The detection unit 47 is provided with four optical cables 48a to 48d and optical cables 48e to 48h on both sides thereof with the detection plate 45 interposed therebetween, and as shown in FIG. -48d and the tips of the optical cables 48e-48h form four sets of opposing detectors 40a-40d and detectors 49e-49h corresponding to the four rows of code rows 45a-45d of the detection plate 45.
The presence or absence of a slit hole at a position corresponding to a plurality of detectors (49a to 49h) represents a code.

 Next, the operation will be described.

When the tong rail T of the track turnout is changed between the normal position and the inverted position by the electric point machine, the lock can 50 becomes the tong rail T.
When the conversion is completed, the localization-side lock piece 21 fits into the notch groove 53 of the lock can 50, and in the opposite position, the opposite-side lock piece 22 is notched. Fits into 54 and is locked.

Immediately before the completion of the conversion at the time of the conversion, the push block 55 fixed to the stereotactic side can 51 of the lock canister 50 in the orientation is the lock detector 40a.
The push block 56 pushes the head 42a of the detection rod 42 of the lock detector 40b, and displaces the detection rod 42 against the urging force of the urging spring 43. Let it.

The displacement of the detection rod 42 indicates a relative displacement of the detection rod 42, which is a member interlocked with the lock can 50, with respect to the main body of the point machine 10, and a detection plate 45 fixed to the detection rod 42.
And the detector 47, which is a member fixed to the electric point machine 10, is relatively displaced.

The detectors 49a to 49d and the detectors 49e to 49h of the detection unit 47 are
Along the plurality of code rows 45a to 45d overlapping the four stages of the detection plate 45, the lock plate 50 is relatively displaced in the direction of displacement of the lock can 50 accompanying the conversion. When the conversion is complete, the four opposing sets of detectors 49a-49d and 49e-49h stop on the four code strings 45a-45d.

When stopped, the four sets of detectors 49a to 49h of the detection unit 47 use the 4-bit position signal from the four rows of code rows 45a to 45d of the detection plate 45 as a signal representing the displacement in the displacement direction of the lock can 50. Read and output.

This position signal indicates the relative positional relationship between the locking canister 50 or its interlocking member and the main body of the turning machine at the time of conversion, and a monitoring device (not shown) uses this position signal to lock the locking canister.
It can detect and monitor the displacement of the 50 lock lock positions, and when it is close to the judgment value, it is possible to know that the time for maintenance is imminent, and it is possible to prepare for when the specified value is exceeded . Further, an abnormality can be detected even if it falls within the specified value depending on the state of the change.

FIG. 7 shows a second embodiment in which four code lines 46a to 46d are arranged on a detection plate 45, and a plurality of code lines 46a to 46d overlapping in four stages have a lock can. A code display is provided in which a long slot-like slit is formed to correspond to 50 positions in the turning direction and to form a continuous slot signal to represent a position signal in accordance with the type of code represented by 4 bits. Such a code display is generally called a gray code.

This so-called gray code has an advantage that an unstable region between display positions is eliminated and a stable bit signal can be detected.

In the above embodiment, the position information is output in 4 bits. However, if it is desired to obtain position information at a finer pitch, the number of code strings and detectors is increased. In addition, it goes without saying that the function of the detection unit and the detection plate is not changed even if the attachment is reversed, and it goes without saying that the detection unit and the detection plate may be provided directly on the lock can.

[Effects of the Invention] According to the lock position detecting device for an electric pointing machine according to the present invention, it is possible to constantly monitor the position shift between the lock can and the lock piece, and when the position is close to the specified value. Can tell when the time for maintenance is imminent, and can prepare for when the specified value is exceeded.

Further, an abnormality can be detected even if it falls within the specified value depending on the state of the change.

[Brief description of the drawings]

1 to 6 show an embodiment of a lock position detecting device for an electric pointing machine according to the present invention. FIG. 1 is a perspective view of a main part of the lock position detecting device, and FIG. Fig. 5 is a view of the electric switch with the cover removed, as viewed in the direction of the arrow II in Fig. 5, Fig. 3 is a horizontal vertical sectional view of a lock detector constituting the lock position detecting device, and Fig. 4 is a vertical vertical sectional view thereof. FIG. 5, FIG. 5 is a plan view showing the branching device and its vicinity, FIG. 6 is a diagram showing a code sequence attached to the detection plate, and FIG. 7 is a diagram showing a code sequence according to the second embodiment. P: Turnout device, R: Main rail T: Tongue rail, M: Electric motor 10: Electric point machine, 21: Locking piece on the localization side 22: Lock piece on the opposite side, 30 ... Operation cans 40a, 40b Lock detector 42 Detection rod 43 Bias spring 45 Detection plate 45a to 45d Code string 49a to 49h Detector 50 Lock can 51 …… Positioning side pin 52 …… Reverse side pin, 53,54 …… Notch groove 55,56 …… Push block

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuo Shigihara, Inventor 1-19-23 Ebisu, Shibuya-ku, Tokyo Within the Signaling Security Association (72) Katsuka Otokawa 2-chome Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa 29-1, No. 1 in the Kyosan Seisakusho Co., Ltd. (72) Inventor Kanzo Seki 2-29, Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture No. 29, No. 1 in the Kyosan Seisakusho Co., Ltd. 1-13-8 Kamikizaki, Urawa-city Nippon Signal Co., Ltd. Yono Factory (72) Inventor Yoshifumi Kikuchi 1-1-13-8 Kamikizaki, Urawa-shi, Saitama Prefecture Nippon Signal Co., Ltd. Yono Factory

Claims (1)

(57) [Claims] When a tongue rail of a turnout of a track is changed between a normal position and a reverse position, a lock can (50) driven by the displacement of the tongue rail, and a notch groove (50) of the lock can (50). 53,54)
A lock position detecting device for an electric pointing machine having a lock piece (21, 22) which fits and locks into a lock can (50) or a member interlocked therewith with a main body of the turning machine. A detection plate (45) is fixedly mounted on one side, and a detection section (47) is provided on the other side. The detection section (47) is composed of a plurality of detectors each configured by opposing optical fibers for light emission and light reception. (49a-49h) are arranged in a direction intersecting the direction of displacement of the lock can (50). The plurality of detectors (49a-49h) are provided on the detection plate (45).
A plurality of parallel slit holes extending in the displacement direction of the lock can (50) are provided in a plurality of rows so that the presence or absence of a hole at a position corresponding to the position indicates the code, and the plurality of detectors (49a to 49h) detect the slits. A lock position detecting device for an electronic pointing machine, characterized in that the generated code is made into a signal of a plurality of bits and corresponds to a position signal representing a displacement in a displacement direction of the lock can (50).