JPS6029370A - Pole changer in tablet block instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention The object of the present invention is to realize a maintenance-free polarity reversing device provided in a continuous blocker.

(2) Explanation of the prior art Continuous ticket blockers are installed at stations at both ends of a block section, and one consecutive ticket for that section is taken out from the consecutive ticket blocker at either station through meetings and collaboration between both stations. This is issued to trains as proof of operating permission to ensure safe block operation.

The ticket blocker is equipped with an upper handle for delivering consecutive tickets received from the other station, and a lower handle for taking out consecutive tickets to be delivered to the train.The lower handle can be pulled out fully. In addition to taking out the consecutive sheets with the opening, the normal, half-open, and full-open positions each have a special meaning.

In other words, "orientation" means that there are no trains in the block section, "
"Half-open" is a state in which the train is approved to be accepted, "
"Full throttle" means a state in which the train can depart from the breakdown. Therefore, there must not be a situation where the lower pulls at both stations are fully or partially open. In particular, when the lower handles of both stations are placed between the two, trains can depart from each station toward the other station at once, which can lead to serious accidents such as head-on collisions. The bottom handle of one station cannot be pulled out without permission, and permission to pull it out or push it in, as well as whether it is fully open or half open, is basically determined by a signal sent from the other station. Each continuous block block connected to each other in the transmitting circuit has a polarity switch that automatically reverses or disconnects the polarity of the transmitting current emitted from one station as the position of the lower handle changes, or when the lower handle is operated. A transmission breaker is installed to cut off the transmission circuit and stop transmission to the other station. Fig. 1 shows the control circuit of a conventional block blocker, and Figs. 2 (a), (b), and (c) show the structure of a polarity reversal device. That is, polarity reversal device 1
is the insulating seat 3 fixed to the lower handle 2, and the pole switching piece provided on the insulating seat 3 (orientation FL11 C2, half open, b2,
It consists of a fully open position (41c4) and a contact finger d set in a fixed position. The contact finger d is (+) of the transmitting power supply, (
-) two contact fingers (1□ld) connected to the terminals respectively
4, and two contact fingers d, d, respectively connected to the terminals of the transmitter.

As the lower handle 2 moves, the position is fixed and half opened,
At the fully open position, each pole piece (al, C2), (b,, b2
) or (01+02), and the pole reversal piece (al l
The terminals are switched depending on the difference in shape and arrangement of C2), (b□, b2), and (C1°C2), and the direction of the transmission current sent to the other station is changed depending on the position of the bottom handle of one station. , which controls the relay 4 provided in the blocker at the other station.

By switching the contacts of the relay 4, the direction in which the lower handle of the other station should be moved is determined. As mentioned above, the polarity reversing devices used in conventional continuous blockers used externally exposed contacts and reversed the polarity of the transmitted current by the relative displacement between the contact finger and the polarization piece. There were several problems, which were a major hindrance to achieving maintenance-free technology. That is, (1) The contact finger contacts the pole switching piece with its spring pressure, but in order to make this contact even safer, the upper surface of the contact finger is provided with an auxiliary spring (not shown in the figure). Adjustment of the contact pressure is delicate, and if the pressure of the auxiliary spring is too strong, a groove will be formed in the insulating seat, and dirt will accumulate in the groove, causing poor contact at the contact point.

(2) The ``caulking'' of the calibrated German silver contact point at the tip of the contact finger may loosen and cause a wire breakage.

(3) Since the spacing between the four contact fingers is narrow, it is easy for dirt to accumulate on the mounting seat, resulting in a semi-short circuit.

These are the disadvantages. Not limited to the above, when using the above structure, mechanical wear and tear cannot be avoided because shocks and vibrations generated by operating the lower handle are transmitted to the touching fingers. The circuit is closed as a part, and even if the lower handle of one station is pulled out fully open based on the transmission from the other station, even if the polarity changer contacts the half-open position, the 1
It has the important function of cutting off the transmission circuit from a station to prevent transmission to the other station, and preventing both stations from being fully opened.

By the way, the conventional transmission breaker 5, as shown in FIG.
It is installed on the lower handle 2, and when the full-opening claw 7 is being pulled out, by moving the lower handle 2, the contact finger 9 is pushed up with the outer pin 8 attached to the full-opening claw 7, and the transmitting circuit 6
It was intended to open the contacts that make up the . Therefore, while the fully open key 7 is in operation, the transmission can be cut off when the lower handle 20 is in the half-open position, but unauthorized unlocking does not necessarily occur when the fully open key 7 is in operation.
There remained a problem that could not be solved only by detecting the motion of the robot. For example, in FIG. 1, if a situation occurs in which a continuous ticket delivered through the upper handle 1o sticks to the continuous ticket tab 11 and does not fall into the continuous ticket gutter 12, the conventional mechanism would prevent the ticket from opening halfway. Even if the hook 13 is kept in the launching position 1, and the fully open hook 7 is falling, once the lower puller 2 is pushed into the normal position, it can be moved freely between the normal position and the half-open position without joint operation with the other party. It becomes possible. In this state, transmit type KenP! Even if you pull out the lower handle 2 to the half-open position while pressing , the transmitting circuit 6viL will not be disconnected.
At the other station, the user receives the transmitted signal and can freely pull out the lower handle 2 fully by operating the unlocking electric key P2, making it possible to take out any number of consecutive tickets, which is extremely dangerous. .

(3) Description of the principle and operation of the present invention The present invention includes a switch that operates by detecting the normal position, half open position, and fully open position of the lower handle, and a switch that switches the current direction of the transmitting circuit in response to the operation of the switch. A polarity reversal device is configured by using a combination with a relay equipped with a contact that can be used in conjunction with a relay, and the transmission circuit is also cut off by a single word that detects the fall of a half-open key, eliminating malfunctions of the polarity reversal device and preventing connection due to unauthorized unlocking. This is an attempt to prevent fraudulent taking of votes.

(4) Constituent of the present invention: A reversal detection switch that detects the fixed position of the lower pull and opens the contact (-1 half-open, fully open position and forms the contact) and a lifting contact and a reversing relay with a falling contact, and a fall detection device that forms a contact by detecting the fall of a half-open key that falls into the receiving groove of the lower handle and locks the lower handle in the normal, half-open, and fully open positions. A switch is provided, and a polarity reversal circuit is configured in the transmitting circuit to reverse the direction of the transmission current to the partner station by switching the lifting contact and the falling contact of the bottle relay, and the transmitting circuit is provided with the drop detection switch. , and the polarity reversal detection switch is connected to the power supply circuit of the polarity reversal relay.

(5) Detailed description of this invention Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 shows a continuous block block to which the polarity changer of the present invention is applied. The box body 14 includes a voltage detector G, a transmitting voltage detector Pl, and an unlocking type detector P.
2, an upper handle 10 and a lower handle 2 are provided, and the upper handle 1
0 into the box body 14, this consecutive ticket M is accumulated in the consecutive ticket gutter 12, and the lower handle 2 is fully opened under certain conditions through a meeting and joint work with the partner station. This is exactly the same as the conventional method in that the consecutive slips M that have fallen onto the tray 2a are taken out one by one from the continuous slip gutter 12.

FIG. 5 is an example of a control circuit. A half-open key locking groove S1 for dropping the Q half-open key 13 onto the lower handle 2 and locking it in the normal, half-open, and fully open positions, respectively. S2. S3 and localization,
A full-open key retaining groove R is formed to engage the full-open key 7 between the half-open and half-open positions. The half-open key 13 and the full-open key 7 are respectively pivotally supported at fixed positions on the lower handle 2 so as to be movable up and down, and the half-open key 13 has a half-open solenoid S for vertically driving the half-open key 13.
M is connected, and the fully open solenoid field for vertical driving is connected to the fully open gear 7.

MS (is a polarity reversal detection switch, 1) CR is a polarity reversal relay, and a fall detection switch with a half-open key 13.

The polarity reversal switch MS is a cam C mounted on the lower handle 2.
This is a switch that is controlled by the shape of 0, detects the normal position, half open or fully open position of the lower handle 2, and operates the polarity reversing relay PCR.

The polarity reversal relay PCR is excited by the operation of the polarity reversal detection switch MS□, and performs polarity reversal switching of the transmission signal.

FIGS. 6(A) to 6(C) show the operation of the polarity reversal detection switch MS+ and a wiring diagram of the polarity reversal circuit including the above switch and relay. The polarity reversal detection switch MS has a contact point MSA at the normal position of the lower handle 2. It is configured in open, half-open, and fully open positions, and is interposed in the power supply circuit of the polarity reversing relay PCH. The polarity reversing relay PCR has a lifting contact (PCR2,), (
PCR3) g, Falling contact (PCR,), (PCR
4), a polarity reversing circuit 15 is configured to switch the current direction of the transmission current by switching both contacts, and the fall detection switch SL is connected in series to the transmission circuit 6.

In the control circuit of FIG. 5, the fall detection switch SL is shown above the half-open key 13, but in reality, as shown in FIG. 7, a cam 13a is provided at the rear edge of the half-open key 13, A fall detection switch SL is installed facing each other so that the impact caused by the operation of the lower handle 2 is not transmitted to the switch. In addition, the control circuit includes a reception relay LNR that operates upon receiving a localization transmission from the destination station, a reception relay LRR that operates upon reception of a half-open or full-open transmission from the destination station, and a reception relay LRR that operates upon reception of a half-open or full-open transmission from the destination station. The unlocking relay P2PR issues an unlocking command according to the polarity and details of the transmitting current from the other station, and detects the normal position of the lower handle 2 when the lower handle 2 is pulled out from the normal position to the fully open direction. The drawer detection switch MSa operates when the lower puller 2 is pushed in from the fully open position to the normal position.The push detection switch MS operates by detecting the fully open position of the lower puller 2 when the lower puller 2 is pushed in the normal position.
A lock detection switch MS2 that operates by detecting a change in movement while moving between a fully open position or a fixed position when fully open (all of these switches are controlled by the shapes of cams C2 to C4), and each switch MS2 to MS4. a constant reverse holding relay NR8R that is excited in response to the operation of the solenoid SM and controls the operation of the half-open solenoid SM and the fully open solenoid;
The continuous ticket delivery memory relay TDSR selectively drives the half-open solenoid SM to unlock the half-open key 13 at the time of consecutive ticket delivery, and the rotational displacement and restoration of the consecutive ticket tongue 11 provided on the consecutive ticket gutter 12. The continuous delivery memory relay TD detects the operation.
It includes a delivery detection switch TD that operates the SR, a transmission circuit breaker TSC that includes the drop detection switch SL and is configured with an AND circuit for each relay output, and a signal oscillator 5OC1 telephone equipment.

For the transmission circuit breaker TSC, see Figure 6)
If the contact ■ of the drop detection switch SL opens as shown in
The transmitting circuit 6 is open, but in the embodiment, the falling contacts of each relay are further connected in series to the transmitting circuit 6, so that the transmitting circuit 6 is cut off when any one relay is operating. It is. In the above, conventional mechanical components have been replaced with electrical circuits as much as possible, but since the function is the same as that of conventional mechanical components, the conventional components can be used as is, with some exceptions. You can.

Next, the present invention will be explained in detail. The operating instructions and procedures are exactly the same as the current continuous blocker.

When the lower handle 2 of one station is in the normal position, if there is no train in the block section, or if a train arrives at one station, or if a train arrives at the other station and is accepted at one station, joint work is still not possible. This is the state before entering. At this time, the lower handle 2 is locked in position due to the fall of the half-open key 13,
The contact (2) of the fall detection switch SL is configured, and the contact (c) of the polarity reversal detection switch MS is open. Therefore, since the polarity reversing relay PCB has fallen, its falling contact (P
CRI).

Through (PCR4), the polarity reversing circuit 15 is on standby in a half-open or full-open state capable of transmitting to the destination station. Now, when a train departs from station A to station B, if you press transmitter Pl at station A, voltage detector G at station A will swing fully open, and station B will open.
The station's voltage detector G swings half-open and a signal sounds. At this time A
The bottom handle 2 of the station cannot be pulled out.

For coin B, while the voltage detector G is swinging, the unlocking type holder P2 is pushed to lift the half-open key 13, and the lower handle 2 can be pulled out to the half-open position.

When the lower puller 2 is moving between the normal position and the half-open position, the contact of the drop detection switch SL opens when the half-open key 130 is activated, and the transmitting circuit 6 is cut off. cannot be sent to.

After the lower puller 2 of station B is in the half-open position and locked due to the fall of the half-open key 13, when transmitting type ken P□ of station B is pressed, the voltage detector G of station B swings to the half-open position, and the detector of station A and station is locked. Denki G swings at full throttle and a signal sound sounds.

At Station A, if you press the unlocking holder I]2 while the voltage detector G is swinging, the fully open key 7 and the half open key 13 will be lifted, and you can pull out the lower handle 2 to the full extent and take out the consecutive slip M. can.

When the lower handle 2 is moving between normal position and fully open,
Even if you press the transmission type Ken P+ at the station, the fall detection switch SL is open, so you cannot send it to station B.

The lower handle 2 is fully open at station A and half open at station B, and when the half-open key 13 falls, both are locked, and the contact configuration of the fall detection switch SL enables transmission at both stations. The contact MS of the polarity reversal detection switch MS□, 4. . consists of
The polarity reversal relay PCB is lifted up and the lifted contact (PCR2) +
, (pcR3) consists of falling contact (PCRI).

(PCR,) becomes open, switching the polarity reversing circuit 15 and reversing the polarity of the transmission current. In other words, it becomes localization transmission.

When the continuous ticket M carried from station A and station B is delivered into the box body 14 through the upper handle 10 of station B, the half-open key 13 is unlocked.
The lower handle 2 at station B can be pushed into the normal position from half-open. At this time, there is no need for transmission from station A or operation of unlocking type ken P2. The half-open key 13 at station B is automatically lifted up, but the fully open key 7 is kept falling and cannot be fully opened.

When you press the transmission type holder Pl at station B, the voltage detector G at station A swings to a half-open position, and when you press the unlock type holder P2, the voltage detector G at the station A swings halfway open.
is lifted up, the lower handle 2 can be moved from the fully open position to the normal position, and both stations return to their initial states.

Note that the response operations of the fully open key 7 and half open key 13 to the transmission from the other station are controlled by the operations of the reception relay signal m, each of the detection switches MS2 to MS4, and the constant reverse holding relay NR8R. , the explanation is omitted because it is functionally the same as the conventional one. An example of specific wiring of the control circuit is shown in FIG. In the control circuit of FIG. 8, the contacts of each relay and switch are indicated by the same symbols as the relays and switches, and those having two or more contacts are numbered.

(6) Effects of the Invention As described above, the present invention provides a polarity reversal detection switch that operates by detecting the normal position, half open, and fully open position of the lower handle, and a polarity reversal that switches the -C contact by the operation of the switch. Since a polarity reversing circuit is constructed in combination with a relay, the polarity can be reliably switched by turning the switch on and off by controlling a cam fixed to the lower handle, and the contact operates like a conventional polarity reversing device. No need for delicate pressure adjustment. In addition, since sealed relays and switches can be used, there are no accidents like conventional ones such as poor contact due to adhesion of dust or malfunctions due to half-short circuits, and furthermore, the impact of the bottom handle is not transmitted to the relay. Therefore, mechanical wear and tear can be prevented.

Furthermore, in the present invention, the fall detection switch detects the lifting of the half-open key and cuts off the transmission, so transmission is possible only when the lower handle is completely locked due to the fall of the half-open key. Malfunction of the key, fully open key,
Unauthorized unlocking due to malfunction can be completely prevented.

Therefore, the present invention has the effect of making it possible to improve reliability and safety by making the main inspection items of polarity reversals and transmission breakers, which conventionally required extremely troublesome maintenance and inspection, maintenance-free. be.

[Brief explanation of the drawing]

Figure 1 is a control circuit diagram of a conventional continuous blocker, Figure 2 (a) is a side view showing the structure of a conventional polarity reversal device, (b) Vi same side view (c) is a polarity reversal switch. 3 is a side view showing the structure of a conventional transmission breaker, FIG. 4 is a partial cross-sectional perspective view of a continuous block blocker to which the device of the present invention is applied, and FIG. 5 is a ff
A block diagram of the 1l control circuit, Figure 6 (r) is an explanatory diagram of the operation of the polarity reversal detection switch, (b) is a connection diagram between the polarity reversal relay and the polarity reversal detection switch, and (c) is the wiring of the polarity reversal circuit. Figure, 7th
The figure is a one-dimensional diagram of the drop detection switch, and FIG. 8 is a wiring diagram showing one embodiment of the control circuit. 2...Lower handle, 6...Transmission circuit, 15...Polarity reversal circuit, 2a...Lower handle receiving groove, MS,...Polarity reversal detection switch, MS, oN, o...Reversal Contact of pole switch, PCR... polarity reversing relay, PCR, ~ PCR4.
・・Contact of polarization relay, SL・・Fall detection switch,
■...Applicant for contacting patent for fall detection switch San'ko Co., Ltd. Agent Patent attorney Higashi Kanno 1-81 Sagi 6 (a) (b) (c) Da L J Shima 7 Chapter 4,

Claims (1)

[Claims] (1) Equipped with a polarity reversal detection switch that detects the fixed position of the lower pull of the continuous blocker and opens the contact, detects the half-open and fully open positions, and configures the contact, as well as a launch contact and a fall contact. comprising a polarity reversing relay and a drop detection switch forming a contact point by detecting the fall of a half-open key that falls into a receiving groove of a lower handle and locks the lower handle in the normal, half-open, and fully open positions, respectively; A polarity reversal circuit that reverses the direction of the transmission current to the other station by switching the lifting contact or falling contact of the polarity reversing relay is constructed in the transmitting circuit, and the drop detection switch is interposed in the transmitting circuit, and the polarity reversing circuit is configured. A polarity reversal device in a continuous blocker, which is characterized in that the polarity reversal detection switch is connected to a power supply circuit of a relay.