JPS638538Y2 - - Google Patents

Description

[Detailed explanation of the idea]

TECHNICAL FIELD The present invention relates to a lighting device for a rail car that is most suitable for application to, for example, a working rail car. For example, in a working railcar, this is
The headlights and rearlights are selectively turned on or off in conjunction with the switching lever of the propulsion reversing machine that switches between stop and reverse operations. That is, as shown in FIG. 1, when the switching lever 1, which is rotated about the support shaft 1a, is switched to the forward position _P1 , the forward limit switch 2 is turned on, the headlights are turned on, and the switching lever is turned on. 1 is reverse position
When switched to P ₂ , reverse limit switch 3
is turned on and the rear lights are turned on. However, conventionally, when the railcar is stopped by switching the switching lever 1 from the forward position P ₁ or the reverse position P ₂ to the neutral position P ₀ , both the headlights and the rear lights go out when in the neutral position. There is a flaw. However, when working on a rail car at night, if both the headlights and rear lights are turned off when the train is stopped, even if only temporarily, the safety of the work cannot be expected. Therefore, conventionally, when repeatedly moving forward and backward, a manual switch was operated each time the switching lever 1 was switched to the neutral position _P0 to stop the railcar, and the headlights or rearlights were manually operated. I was trying to turn it on. Therefore, the driving operation was very troublesome. The present invention was devised in view of the above-mentioned actual situation, and even if the switching lever that switches the rail car between forward, stopped, and reverse states is switched to the neutral position, at least either the headlight or the rear light will not work. An object of the present invention is to provide a lighting device for a railway vehicle configured such that one of the lighting states is selectively maintained. Hereinafter, an embodiment in which the present invention is applied to, for example, a lighting device for a working rail car will be described with reference to FIGS. 2 to 5. First, FIG. 2 shows a lighting circuit for explaining the first embodiment of the present invention, and in this embodiment, the lighting state of the headlight and rear light is controlled by this lighting circuit. It is. 5 is a headlight, 6 is a rear light, SW ₁ is a power switch, SW ₂ and SW ₃ are manual/automatic changeover switches for headlight 5 and rear light 6, SW ₄ and SW ₅ are manual type switches. When the switch SW ₂ and SW ₃ are switched to the automatic terminal a side, the headlights are switched on or off according to the operating position of the switching lever 1 by the control circuit described later. 5 and a rear light 6 are automatically turned on or off.
In addition, the changeover switches SW ₂ and SW ₃ are connected to manual terminal b.
When the switch is switched to the side, the headlights 5 and the rearlights 6 are turned on regardless of the operating position of the switching lever 1. The light intensity of the headlights 5 and rearlights 6 can be switched between a full light state and a reduced light state by manually switching the changeover switches _SW4 and _SW5 . Here, the blinking state of the headlight 5 and the rear light 6 when the changeover switches SW ₃ and SW ₄ are both switched to the automatic terminal a side will be explained. First, 8 is the lever 1 to switch between the headlight 5 and the rear light 6.
A control circuit for automatically turning on or off the light depending on the operating position of the light, and this control circuit is selectively operated depending on a pair of switching circuits 10 and 11 and the switching states of these switching circuits 10 and 11. Each of them is equipped with a pair of relays R ₁ and R ₂ . In the switching circuit 10, a series circuit consisting of a relay contact _r1-1 and a reverse interlocking switch _SW7 is connected in parallel to a forward limit switch _SW6 which is switched in conjunction with the changeover lever 1. And this switching circuit 10
A relay R ₁ is connected in series with the switching circuit 10 and the relay R ₁ is connected between the power supply line 13 and the ground line 14 . Similarly, in the other switching circuit 11, a series circuit consisting of a relay contact r _2-1 and a forward interlocking switch SW ₉ is connected in parallel to a reverse limit switch SW ₈ which is switched in conjunction with the switching lever 1. has been done. A series circuit consisting of switching circuit 11 and relay _R2 is connected between power supply line 13 and ground line 14. In addition, the forward and reverse limit switch mentioned above
SW ₆ and SW ₈ are used when the switching lever 1 is switched to the forward position P ₁ or the reverse position P ₂ (see Fig. 1).
The switch is turned on in conjunction with this switching operation. Also, the reverse link switch in the switching circuit 10
SW ₇ and the forward interlocking switch SW ₉ of the switching circuit 11 are the reverse and forward limit switches.
It is configured to be linked to SW ₈ and SW ₆ , respectively. That is, when the switching lever 1 is switched to the forward position P ₁ (or reverse position P ₂ ) and the forward limit switch SW ₆ is switched to the on state (or off state), the forward interlocking switch SW ₉ of the switching circuit 11 is turned off. (or the on state). Similarly, when the reverse limit switch SW ₈ is turned on (or turned off), the reverse interlock switch SW ₇ of the switching circuit 10 is turned off (or turned on). In addition, the manual/automatic changeover switch SW ₂ and
Each automatic terminal a side of SW ₃ has relay contacts r _1-2 and
r _2-2 are provided respectively, these relay contacts
Power is selectively supplied to each automatic terminal a by turning on and off r _1-2 and r _2-2 . and relay contacts r _1-1 and r _1-2 are the relay contacts r 1-1 and r 1-2
When _R1 is not activated, it is in the off state, and when it is activated, it is in the on state.
Similarly, relay contacts r _2-1 and r _2-2 are in an off state when the relay R ₂ is not operating, and are in an on state when the relay R 2 is in operation. Next, the circuit operation will be described when the power switch SW ₁ is placed in the on state and the manual/automatic changeover switches SW ₂ and SW ₃ are both connected to the automatic terminal a side. In this case, the control circuit 8 controls the on/off states of relay contacts _r1-2 and _r2-2 ,
As a result, the headlight 5 and the rearlight 6 are selectively turned on or off. That is, when the switching lever 1 is switched from the neutral position _P0 to the forward position _P1 , the forward limit switch _SW6 of the switching circuit 10 is activated in conjunction with this, as shown by the imaginary line in FIG.
At the same time, the forward interlocking switch _SW9 of the switching circuit 11 is switched to the off state. At this time, relay contacts r _1-1 and r _2-1 are both off, and reverse link switch SW ₇ of the switching circuit 11 is also off. Therefore, the power supplied through the power switch _SW1 is supplied to the relay _R1 through the forward limit switch _SW6 , thereby putting the relay _R1 into operation. As a result, relay contacts r _1-1 and r _1-2 are switched to the on state, respectively, so that the power source is switched to power switch SW ₁ , relay contact R _1-2 , manual/automatic changeover switch SW ₂ , and full light/dim. The signals are supplied to the headlights 5 via respective changeover switches _SW4 . In addition, at this time,
As described above, the amount of light from the headlight 5 can be switched between a full light state and a reduced light state by selectively switching the switch SW ₄ manually. After that, when the switching lever 1 is switched from the forward position _P1 to the neutral position _P0 , the forward limit switch is activated.
SW ₆ is switched to the off state. However, since the relay contact _r1-1 and the reverse movement interlocking switch _SW7 remain on, the operating state of the relay _R1 is maintained. Therefore, even when the switching lever 1 is switched from the forward position _P1 to the neutral position _P0 , the headlight 5 remains lit. After that, the switching lever 1 returns to the neutral position P ₀
When switching from _P2 to reverse position, the reverse limit switch is activated in conjunction with this switching lever 1.
SW ₈ is on, and reverse interlock switch SW ₇
are respectively switched to the off state. As a result,
Since the current to relay R ₁ is cut off, this relay
R ₁ is deactivated and relay contacts r _1-1 and r _1-2
are both switched to the off state. On the other hand, relay
Power is supplied to R ₂ via reverse limit switch SW ₈ and it becomes operational. As a result, both relay contacts R _2-1 and R _2-2 are switched to the on state, so power switch SW ₁ , relay contact R _2-2 , manual/automatic changeover switch SW ₃ , and full light/dimmer changeover switch are switched on. Power is supplied to the rear light 6 through each SW ₅ , and the rear light 6 is turned on. Furthermore, when the switching lever 1 is switched from the reverse position _P2 to the neutral position _P0 again, the reverse limit switch _SW8 is turned off, but both the relay contact _r2-1 and the forward interlocking switch _SW9 are turned on. Therefore, relay R ₂ continues to operate and relay contact r _2-2 is maintained in the on state. Therefore, the switching lever 1 is in the reverse position.
Even if switched from P ₂ to neutral position P ₀ , the rear light 6
The lighting state will be maintained. The table shows the relationship between the operating position of the switching lever 1 and the blinking states of the headlights 5 and rearlights 6 when the lighting circuit as described above is used.

[Table] As is clear from the above table, according to the lighting device of this embodiment, when the switching lever 1 is switched to the forward position _P1 or the reverse position _P2 , the headlight 5 is switched on.
Alternatively, when the rear light 6 is turned on and the switching lever 1 is switched from the forward position _P1 to the neutral position _P0 , or from the reverse position _P2 to the neutral position _P0 , the headlight 5 or the rear light is turned on. The lighting state of the lamp 6 is maintained. Therefore, when the rail car repeatedly moves forward and backward, either the headlight 5 or the rear light 6 is always selectively turned on even when the rail car is stopped.
Work safety can be ensured. In addition, unlike in the past, when the switching lever 1 is switched to the neutral position _P0 , there is no need to manually turn on the headlights 5 and rearlights 6 as necessary, making driving operations easier. It becomes very convenient. Further, FIG. 3 shows a lighting circuit of a lighting device showing a second embodiment of the present invention. Note that in FIG. 3, parts common to those in FIG. 2 are denoted by common reference numerals, and their explanations will be omitted. In this example, relay contacts r _2-3 and r _1-3
Both are normally closed type relay contacts, and these relay contacts _r2-3 and _r1-3 are switched and controlled by relays _R2 and _R1 , respectively. That is, relay contacts r _2-3 are switched to an OFF state when relay R ₂ is activated, and relay contacts r _1-3 are switched to an OFF state when relay R ₂ is activated. Even with this configuration, the same operation as in the case of the lighting circuit shown in FIG. 2 can be performed. 4 and 5 show a third embodiment of the present invention, in which the switching lever 1 is switched from the forward position _P1 or the reverse position _P2 to the neutral position _P0. At times, the control for keeping the headlights 5 or the rearlights 6 in a lit state is performed using a mechanical configuration. That is, the support shaft 1 of the switching lever 1
At a, one end of the reversing lever 20 is rotatably supported by the support shaft 1a. A toggle spring 23 is installed between a pin 21 provided at the other end of the reversing lever 20 and a pin 22 provided on the switching lever 1, and the switching lever 1, reversing lever 20, and toggle spring 23 operate the toggle mechanism. It is configured. Note that 25 and 26 are stoppers for preventing rotation of the reversing lever 20;
Reference numerals 27 and 28 indicate changeover switches for turning on or off the headlight 5 and the rear light 6. According to the toggle mechanism configured in this way, the fourth
As shown in the figure, when the switching lever 1 is placed in the forward position _P1 , the reversing lever 20 is rotated toward the stopper 25 by the toggle spring 23, and the switching switch 27 is turned on. There is. Therefore, in this case, the headlight 5 is turned on. After that, when the switching lever 1 is switched from the forward position P ₁ to the neutral position P ₀ as shown by the imaginary line in FIG. 4, the switching lever 1 has not yet reached the dead point A, so the reversing lever 2
0 remains energized on the stopper 25 side. Therefore, the changeover switch 27 is kept in the on state,
The lighting state of the headlight 5 is maintained. Then, as shown by the solid line in FIG. 5, the switching lever 1 moves from the neutral position _P0 to the reverse position P2 _.
Immediately after the switching lever 1 passes the dead point A, the reversing lever 20 is rotated by the toggle spring 23 and the stopper 2 is turned.
It is rotated and energized to the 6 side. As a result, the changeover switch 27 is turned off and the other changeover switch 28 is turned on, whereby the headlight 5 is turned off and the rearlight 6 is turned on at the same time. Next, when the switching lever 1 is switched from the reverse position P ₂ to the neutral position P ₀ , the reversing lever 20 is held on the stopper 26 side, just as in the case described above, so the rear light 6 is turned on. is retained. In addition, from the state shown in Figure 5, move the switching lever 1 to the forward position.
When switching to _P1 , the dead point B shown in FIG. 5 becomes the switching point of the reversing lever 20. As described above, according to the switching mechanism of this embodiment, even when the switching lever 1 is switched to the neutral position P ₀ , the headlight 5 or the rearlight 6 is selectively turned on. Therefore, the toggle mechanism can perform exactly the same operation as in the first and second embodiments described above. Although the present invention has been described above with reference to embodiments, the present invention is not limited to these embodiments, and various modifications can be made based on the technical idea of the present invention. As described above, in order to switch the rail car between forward, stopped, and reverse states, when the switching lever, which can be switched between the three positions of the forward position, neutral position, and reverse position, is switched from the forward position to the neutral position, The headlights are kept in a lighting state, and when the switching lever is switched from the forward position to the neutral position, the rearlights are kept in the lighting state. Therefore, according to the present invention, when the rail car repeatedly moves forward and backward, either the headlight or the rear light is selectively turned on at all times even when the rail car is stopped, which is different from the conventional method. In this way, there is no possibility that either the headlights or the rearlights will be turned off when the vehicle is stopped, even if only temporarily, and work safety can be ensured. Moreover, there is no need to operate a manual switch to turn on the headlights or rearlights every time the switching lever is switched to the neutral position, as was the case in the past.
Driving operation becomes very easy.

[Brief explanation of the drawing]

FIG. 1 is an operation diagram of a conventional switching lever for railcars, showing the relationship between the switching lever and forward and reverse limit switches. Fig. 2 is a circuit diagram of a lighting circuit showing a first embodiment of the present invention, and Fig. 3 is a circuit diagram of a lighting circuit showing a second embodiment of the present invention.
FIGS. 4 and 5 are circuit diagrams of a lighting circuit showing a third embodiment of the present invention, respectively, and show the operation of a toggle mechanism consisting of a switching lever, a reversing lever, and a toggle spring. FIG. 4 is an operation diagram for explaining each. In addition, in the symbols used in the drawings, 1...
...Switching lever, 2...Forward limit switch, 3
... Reverse limit switch, 5... Headlight, 6...
... Rear light, 8 ... Control circuit, 10, 11 ... Switching circuit, 20 ... Reversing lever, 21, 22
...Pin, 23...Toggle spring, 27,2
8... is a changeover switch.

Claims (1)

[Scope of utility model registration request] A switching lever that can be switched to three positions, a forward position, a neutral position, and a reverse position, in order to switch the rail car into forward, stopped, and reverse states; and a switching lever that can selectively turn on the headlights and rear lights. at least one pair of switching means switched by a lever; when the switching lever is switched from a forward position to a neutral position, the headlight is maintained in a lit state; and when the switching lever is switched from a reverse position to a neutral position; and control means for maintaining the lighting state of the rear lights when the rear lights are turned on.