JPH04372502A - Current collector for trackless trolley car - Google Patents

Abstract

PURPOSE:To prevent trouble upon occurrence of contact loss of a trolley pole by facilitating the housing operation of trolley pole. CONSTITUTION:A lift command is fed from a switch means to an unlock unit 37a which then unlocks a trolley pole 4a from a pole lock unit 14a and operates a pneumatic cylinder 10a to lift side thus lifting the pole 4a. A lowering command is fed from the switch means to the pneumatic cylinder 10a which then operates to lower the pole 4a, through guidance of a pole guide unit 13a, to a housing position where the pole 4a is secured in place by means of the lock unit 14a. When a contact loss detector 15 detects that one of right and left poles 4a has lifted abnormally, the pneumatic cylinder 10a for the abnormally lifted pole 4a is operated to lowering side thus lowering the pole 4a.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collector for a trackless electric train using a pair of left and right trolley poles.

0002

[Prior Art] A current collector for a trackless train is designed so that the vehicle can run with as much deviation to the left or right as possible.
A pole type using a pair of long trolley poles is used.

[0003] The trolley pole is attached to a swivel base at the top of the vehicle body that rotates around a vertical axis so that it can move up and down by swinging up and down. is designed to come into sliding contact with the trolley overhead wire.

[0004] A guide cord is attached to the trolley pole, and when parking the vehicle, the driver who gets out of the vehicle pulls the guide cord with his hand to lower the trolley pole, hooks it, and stores it. There is.

[0005]

[Problems to be Solved by the Invention] The operation of storing the trolley pole by manipulating the guide cord as described above requires manpower and is extremely troublesome, especially in rainy weather.

[0006] In addition, in a pole-type current collector, the trolley pole may separate from the overhead wire for some reason while traveling and rise, and if such separation occurs, the ground equipment of the overhead wire may be damaged. This can cause breakage of the pole itself, electrical short circuit accidents, etc.

[0007] The purpose of the present invention is to solve the above problems,
To provide a current collector for a trackless electric train, which allows easy storage operation of trolley poles and prevents accidents when trolley poles become detached.

[0008]

[Means for Solving the Problems] A current collector for a trackless electric train according to the present invention is provided with a pair of left and right swivel stands that can freely turn around a vertical axis on the upper part of the car body, and each swivel stand has a trolley pole. In a current collector for a trackless train, the base end of which is attached to be able to swing up and down, and each of the left and right trolley poles can be raised and lowered individually, is installed between the swivel base and the trolley pole. a pole lifting actuator that raises and lowers the trolley pole, a pole guide device installed on the top of the vehicle body that guides the descending trolley pole and always lowers it to a predetermined storage position, and a trolley pole that has descended to the storage position. a pole lock device that fixes the pole lock device in that position, a lock release actuator that releases the pole lock device, a switch means provided at a predetermined location on the vehicle body to individually command the raising and lowering of each trolley pole, and one of the left and right trolley poles. A pole disconnection detection device detects when a trolley pole has risen abnormally relative to the other, and when a trolley pole is commanded to rise, the lock release actuator is operated, and the pole lifting actuator is operated to the rising side, and when a trolley pole is commanded to descend, the pole is The lifting actuator is operated to the lowering side, and when the pole separation detection device detects that one of the left and right trolley poles has risen abnormally relative to the other, the pole lifting actuator of the trolley pole that has abnormally risen is operated to the lowering side. The present invention is characterized in that it is equipped with a control means for controlling.

[0009]

[Operation] When the trolley pole is raised and the switch means is operated to command the trolley pole to descend, the control means operates the pole lifting actuator to the lowering side and the trolley pole is lowered. . Then, the trolley pole is guided by the guide device, lowered to the storage position, and fixed at the storage position by the pole lock device.

When the trolley pole is lowered to the stored position and fixed, when the switch means is operated to command the trolley pole to rise, the control means first operates the lock release actuator to release the lock. The fixation of the trolley pole by the device is released, and then the pole raising/lowering actuator is operated to the raising side, and the trolley pole is raised. Then, the current collector shoe at the tip of the trolley pole can be brought into sliding contact with the overhead wire.

During running, if one of the trolley poles separates from the overhead wire and abnormally rises above the other, this is detected by the pole separation device, and the control means moves the pole lifting actuator of the trolley pole that has separated from the line to the descending side. When activated, the separated trolley pole is lowered. For this reason, the above-mentioned accidents due to track separation can be prevented.

0012

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0013] Figures 1 to 3 show the body (1) of a trackless train.
It shows the current collector installed on top of the. In addition, Figure 1
is a left side view of the current collector, FIG. 2 is a perspective view of a part of the current collector seen from diagonally above the rear, and FIG. 3 is a perspective view of a part of the current collector seen diagonally from above the left. FIG.

[0014] Left and right 1 fixed on the roof of the vehicle body (1)
A swivel table (3) is attached to the pair of bases (2) so that it can freely rotate around a vertical axis, and a trolley pole (4a) (4b) is attached to the rear of each base (2) so that it can be raised and lowered. ing. The poles (4a) and (4b) are attached to the swivel base (3) at the base end of the front end so as to be able to swing up and down about a horizontal axis, and the tip end of the rear end can be raised and lowered. There is. A current collector shoe (6) is provided at the tip of the pole (4a) (4b), and the current collector shoe (6) slides into contact with the trolley overhead wire (5a) (5b) from below, and the shoe (6) is passed through the pole (4a) (4b). It is electrically connected to the power supply device inside the vehicle body (1). A pole (4) is installed between the swivel base (3) and the proximal portion of the poles (4a) and (4b).
A spring (7) is provided to bias the poles (4b) upward, and one end of the guide cord (8) is attached to the tip end portion of the pole (4a) (4b).

Since the structure of the current collector described so far is well known, detailed explanation will be omitted.

A cylinder support shaft (9) extending vertically upward is fixed to the swivel base (3), and its upper end is connected to the pole (4).
a) Air cylinder (1) between the proximal part of (4b)
0a) (10b) are installed. Air cylinder (
The base ends of the cylinder tubes (11) of 10a and 10b are rotatably attached to the support shaft (9), and the distal ends of the piston rods (12) are rotatably attached to the poles (4a and 4b), respectively. These air cylinders (10a) (10b
) constitutes a pole lifting actuator that lifts and lowers the poles (4a) and (4b).

Immediately after the swivel platform (3) on the roof of the vehicle body (1), there is a pair of left and right pole guide devices (4a, 4b) that guide the descending poles (4a) and (4b) and lower them to the storage position.
A pair of left and right pole locking devices (14a) (14b) are located between the poles 13a and 13b at the rear of the roof to fix the poles (4a and 4b) that have been lowered into the storage position in that position. A pole separation detection device (15) is provided for detecting that one of the left and right poles (4a) (4b) has separated from the overhead wire (5a) (5b).

[0018] The pole guide devices (13a) (13b) are
It is shown in FIG.

[0019] The pole guide devices (13a) (13b) are
It consists of a horizontal plate-shaped base (16) fixed on the roof, and a relatively short guide member (17) that has an arc shape in plan view and is integrally provided thereon.

The guide member (17) forms a part of a cylinder centered on the pivot axis of the swivel table (3), and is symmetrical with respect to a vertical plane in the front-rear direction that includes the pivot axis. The upper end surface of the guide member (17) is a roller guide surface (18), and this surface (18) is highest at both left and right ends and gradually becomes lower toward the center. and,
A rectangular recess (19) cut downward from the guide surface (18) is formed in the left and right center portions of the guide member (17).

[0021] At the bottom of the proximal end portion of the pole (4a) (4b), a pole (4
a) A guide roller rotating around an axis parallel to (4b) (
20) is installed.

When the poles (4a) (4b) descend, if the poles (4a) (4b) were extended straight back, the roller (20) will move into the recess (19) of the guide member (17).
It fits. If the poles (4a) (4b) do not extend straight back, the roller (20) will first move toward the guide member (17).
It rides on the guide surface (18) on the left or right side of the recess (19), and since the guide surface (18) is inclined toward the recess (19), it rides along the slope of the guide surface (18) as it descends. and move to the recess (19) side. This allows Paul (4a)
(4b) rotates toward the rear, and eventually turns toward the rear, and the roller (20) fits into the recess (19). roller(
20) enters the recess (19), the poles (4a) (4b
) extends directly behind, almost horizontally. This position will be referred to as the storage position of the poles (4a) (4b).

The pole locking device (14a) (14b) is shown in FIG. 3 and in detail in FIG. 4.

The pole lock devices (14a) (14b) are provided on a common base (21) fixed on the roof,
It is located directly behind the corresponding pole guide device (13a) (13b).

A pair of left and right support plates (22) (2) are provided at the left and right ends of the base (21), facing each other and extending upward in parallel.
3) is provided in a fixed manner. Each support plate (22) (2
3) Guide plate portions (24) and (25) extending diagonally upward and away from each other in the left and right directions are integrally formed at the upper end. Further, a horizontal pole receiving plate (26) is fixed between the height intermediate portions of the left and right support plates (22) and (23).

A bracket (27) protruding outward is provided on one support plate (22), and this bracket (27)
The lower part of the hook (28) is attached to the hook (28) so that it can rotate about a horizontal axis extending in the front-rear direction. Hook (2
8) can be rotated between a locked position shown by a solid line in FIG. 4 and an unlocked position shown by a chain line. A spring mounting member (29) is provided on the lower side of the bracket (27) of this support plate (22), and its tip and hook (
A spring (30) is provided between the hook (28) and the lower end of the hook (28) to urge the hook (28) toward the lock position. Hook (2
8) is provided with a claw (31) at its tip, and the upper part of the claw (31) is an inclined surface (32).

Pole confirmation limit switches (LS) (33a) (33b) are installed on the outer surface of the other support plate (23).
) is installed. The actuating arm (34) of the LS (33a) (33b) passes through the rear side of the support plate (23) and extends between the left and right support plates (22) (23), and its tip is lower than the receiving plate (26). It is located slightly above.

An engaging member (35) on which the claw (31) of the hook (28) is hooked is provided on one side of the tip side of the pole (4a) (4b).

When the poles (4a) and (4b) are lowered to the storage position as described above, the parts near the tips of the poles (4a and 4b) enter between the left and right support plates (22 and 23) and are held in place. Get on the board (26). Even if the tips of the poles (4a) (4b) bend downward before the roller (20) enters the recess (19) of the guide member (17), the poles (4a) (4b) will The poles (4a) and (4b) are placed on and guided by the guide plates (24 and 25), and when the rollers (20) fit into the recesses (19), the poles (4a and 4b) are also securely attached to the left and right support plates ( 22)(
23) and rest on the receiving plate (26). Before the poles (4a) (4b) enter between the left and right support plates (22) (23) and rest on the receiving plate (26), the engaging member (35) is attached to the hook (28). It hits the inclined surface (32) and rotates it to the unlock position side, and the pole (4a
) (4b) is placed on the receiving plate (26), the engaging member (3
5) passes through the inclined surface (32) of the claw (31), the hook (28) returns to the locking position by the force of the spring (30), and the claw (31) moves to the upper side of the engaging member (35). It gets caught and becomes fixed, making it impossible for the poles (4a) and (4b) to rise.

A support stand (36) protrudes outward from the bottom of the support plate (23) of the pole lock device (14a) (14b).
is provided, on which a pole locking device (14a) (
Lock release devices (37a) and (37b) are provided to release the lock of the hook (28) of 14b). The lock release device (37a) (37b) is a solenoid (38a)
(38b), a movable member (38b) that interlocks with the iron core.
9) is connected to the lower end of the hook (28). When the solenoids (38a) and (38b) are in a de-energized state, the movable member (39) is free and the hook (28)
can rotate freely regardless of the movable member (39). When the solenoid (38a) (38b) is excited, the movable member (39) is attracted toward the solenoid (38a) (38b), and the hook (28) moves to the unlock position against the force of the spring (30). be rotated.

The pole disconnection detection device (15) is shown in FIG. 2, and its details are shown in FIGS. 5 and 6.

The main parts of the pole disconnection detection device (15) are as follows:
It is provided on a horizontal plate-shaped base (40) fixed on the roof. The base (40) has a long rectangular shape from front to back, and a front wall (41) stands vertically upward on its upper surface.
, an intermediate wall (42) and a rear wall (43) are provided in a fixed manner and parallel to each other. Intermediate wall (42) and rear wall (4
3) is larger than the distance between the intermediate wall (42) and the front wall (41).

The intermediate wall (42) and the rear wall (
43), a pair of left and right threaded rods (44
a) (44b) are mounted so that they can slide back and forth through them. A first adjustment nut (45) is screwed into the rear part of the threaded rod (44a) (44b) so that its position can be adjusted. Threaded rod (
44a) A second adjustment nut (46) and a lock nut (47) are screwed into the front part of (44b) so that their positions can be adjusted, and the LS operation plate (48) is held between them and extends upward. . Regarding the left and right threaded rods (44a) (44b), the positions of the corresponding nuts (45) (46) (47) are almost the same. The second adjustment nut (46) and the intermediate wall (
A spring (4) is installed around the threaded rods (44a) (44b) between the threaded rods (42) to urge the threaded rods (44a) (44b) backward
9) is provided.

[0034] The first of the left and right threaded rods (44a) (44b)
One LS mounting base (50) is attached to the part between the adjustment nut (45) and the lock nut (47) so as to be movable back and forth, and on this base (50) there are a pair of left and right wire disconnection detection devices. LS (51a) (51b) are attached, and these operating arms (52) face the corresponding LS operating plates (48) from the rear side. In addition, the LS mounting base (50) and the rear wall (43
), there is a spring (
53) is attached, and this spring (53) causes
The mounting base (50) is adapted to come into pressure contact with the one located in front of the left and right first adjustment nuts (45).

From the first adjustment nut (45) to the LS operation plate (
48) is the distance from the rear end of the mounting base (50) to LS (5
1a) and (51b) to the front end of the operating arm (52), and these differences can be adjusted by adjusting the positions of the adjustment nuts (45) and (46).

One end of the control wire (54a) (54b) is connected to the front end of the threaded rod (44a) (44b). The control wires (54a) (54b) pass through the front wall (41) of the base (40), and the other ends are connected to the corresponding poles (4
a) Middle wire attachment part (79a) (79b) of (4b)
)It is connected to the. Control wires (54a) (54b)
The intermediate part of the tube (55) is passed through a guide tube (55), one end of the tube (55) is connected to the front wall (41), and the other end is connected to the cylinder tube (1) of the air cylinders (10a) (10b).
1) is fixed.

When the poles (4a) (4b) descend, the wire attachment parts (79a) (79b) also descend, the control wires (54a) (54b) become tense, and the threaded rods (44a) (
44b) is pulled by the control wires (54a) and (54b) and moves to the front side. When the poles (4a) (4b) rise, the wire attachment parts (79a) (79b) also rise, loosening the control wires (54a) (54b) and tightening the threaded rod (44a).
) (44b) moves rearward by the force of the spring (49). When the left and right poles (4a) (4b), that is, the wire attachment parts (79a) (79b) are at the same height, the left and right threaded rods (44a) (44b), especially the front and back positions of the first adjustment nut (45) are adjusted so that they are the same. Further, when the poles (4a) (4b) are lowered to the storage position, the second adjustment nuts (46) of the threaded rods (44a) (44b) move to a position slightly behind the intermediate wall (42),
When the poles (4a) (4b) are raised and the shoes (6) are in sliding contact with the overhead wires (5a) (5b), both adjusting nuts (45) (46) are connected to the middle wall (42) and the rear wall. (4
3).

FIG. 7 shows air cylinders (10a) (10b).
) shows an example of a pneumatic circuit for driving.

Between a suitable compressed air source (56) and the two air cylinders (10a) (10b), two solenoid valves (
2-position 5-port valves) (57a) (57b) are provided. Pressure port (P) of solenoid valve (57a) (57b)
is connected to a compressed air source (56) via a manual valve (58). The first cylinder port (A) of the solenoid valve (57a) (57b) is the air cylinder (10a) (10b)
The second cylinder port (B) is connected to the port (59) of the front chamber of the air cylinder (B) through the pressure reducing valve with check valve (60) and the variable throttle valve with check valve (61).
10a) (10b) is connected to the port (62) of the rear chamber.

FIG. 8 shows an example of an electric circuit for controlling the elevation of the left pole (4a).

This electric circuit includes the pole confirmation LS (33a) of the pole lock device (14a) described above.
), the solenoid (38) of the lock release device (37a)
a) LS for detecting line separation of pole line separation detection device (15)
(51a) and solenoid valve (57a), in addition to the handbrake switch (63), the first pole down push button switch (first down switch) (65), and the second pole down push button switch (second down switch) (66), pole lift pushbutton switch (lift switch) (67), relay (68), and two lift lamps (6
9) (70) and pole lock confirmation lamp (71) (
72) is included. (73) is the + terminal of the DC power supply,
(74) is the same terminal.

A first lowering switch (65) is provided at the driver's seat, and a second lowering switch (66) and a rising switch (67) are provided at the rear of the vehicle body (1). One ascending lamp (69) and pole lock confirmation lamp (71) are provided at the driver's seat, and the other ascending lamp (70) and pole lock confirmation lamp (72) are provided at the rear of the vehicle body (1).

[0043] The relay (68) is called a mechanical lock type keep relay in which operation is mechanically maintained, and includes an S coil (set coil) (75), an R coil (reset coil) (76), and It has multiple contacts that are opened and closed by these. Then, when the S coil (75) is excited, the first contact (77) closes,
Even if the S coil (75) is demagnetized, it is held until the R coil (76) is energized next, and when the R coil (76) is energized, the second contact (78) closes and the R coil (76) is energized. ) is demagnetized, it is held until the next S coil (75) is excited.

The electric circuit for controlling the raising and lowering of the right pole (4b) is similar to this.

In the electric circuit for controlling the left and right poles (4a) (4b), switches (65) (66) (
67) constitutes a switch means for individually commanding the raising and lowering of the poles (4a) and (4b). The air cylinder (10a) (
10b) and control means for controlling the operation of the solenoids (38a) and (38b).

The operation of lowering the poles (4a) (4b) when entering the warehouse and the operation of raising the poles (4a) (4b) when leaving the warehouse are performed with the train stopped and a hand brake (not shown) activated. When you activate the handbrake,
The handbrake switch (63) opens, current no longer flows through the series circuit between it and the line disconnection detection LS (51a), and the pole disconnection detection device (15) ceases to operate.

With the two poles (4a) (4b) rising and in sliding contact with the overhead wires (5a) (5b), by pressing the first lowering switch (65) of the left pole (4a), The left pole (4a) is lowered and fixed in the retracted position as follows.

When the first lowering switch (65) is pressed to close it, the negative terminal (7) passes from the + terminal (73) through the S coil (75) of the switch (65) and the relay (68).
4), the S coil (75) is energized, so the second contact (78) opens and the first contact (77) closes. Even if the first contact (77) is opened, the first contact (77) remains closed. 1st
When the contact (77) closes, the left solenoid valve (57a) is energized and switched to position a. As a result, the front chamber of the left cylinder (10a) communicates with the compressed air source (56), and the rear chamber communicates with the throttle valve (61).
) and the pressure reducing valve (60), compressed air is supplied to the front chamber, and air in the rear chamber is exhausted to the atmosphere through the throttle valve (61). Therefore, the cylinder (10a) gradually extends, which causes the pole (4a) to gradually descend. And Paul (4
When a) is lowered to the storage position and locked as described above, the lock confirmation LS (33a) on the left side is activated and its contact closes, so the pole lock confirmation lamp (7) is activated.
1) (72) lights up.

When the second lowering switch (66) is pressed, the pole (4a) is lowered and locked in the retracted position in exactly the same manner as described above.

The same applies to the lowering operation of the right pole (4b).

With the two poles (4a) and (4b) lowered and locked in the retracted position, by pressing the lift switch (67) of the left pole (4a),
The left pole (4a) is raised as follows.

When the lift switch (67) is pressed to close it, the solenoid (38a) of the left lock release device (37a) and the R coil (76) of the relay (68)
energize. By energizing the solenoid (38a), the hook (2) of the left pole locking device (14a)
8) is rotated to the unlock position, and the pole (4a
) is unlocked and the pole (4a) rises above the hook (28) by at least the force of the spring (7). At the same time, by energizing the R coil (76), the first contact (77) opens and the second contact (78) closes, and even if you release the lift switch (67) and open it, the second contact (78) is held closed. Note that when the lift switch (67) is opened, the lock release device (37a) is opened.
) solenoid (38a) is demagnetized and the hook (28
) returns to the locked position. When the second contact (78) closes,
As the ascending lamps (69) and (70) light up, the left solenoid valve (57a) is no longer energized, demagnetized, and switched to position b. This will cause the left cylinder (
10a) The rear chamber contains the throttle valve (61) and the pressure reducing valve (
The front chamber is open to the atmosphere, and the rear chamber is connected to a compressed air source (56) via a pressure reducing valve (60).
) through which compressed air is supplied and the air inside the room on the front side is exhausted to the atmosphere. For this reason, the cylinder (10
a) gradually retracts, which causes the pole (4a) to gradually rise. When the pole (4a) rises to an appropriate height, a person operates the guide cord (8) to release the shoe (6).
) on the overhead wire (5a).

The same applies to the raising operation of the right pole (4b).

When the left and right poles (4a) (4b) are raised and hung on the overhead wires (5a) (5b), the train is ready to run.

[0055] While the train is running, the handbrake is inactive, so the handbrake switch (6
3) is closed, and the pole disconnection detection device (15) becomes ready for operation. When the pole (4a) (4b) is disconnected from the line, the pole (4a) (4b) where the disconnection occurred is as follows.
4b) is automatically lowered.

First, when both poles (4a) and (4b) are in sliding contact with the overhead wire without separating from the wire, the left and right poles (4a)
) (4b) are almost the same height, the positions of the left and right wire attachment parts (79a) (79b) are almost the same,
The front and rear positions of the left and right threaded rods (44a) (44b) and the first adjustment nut (45) are also approximately the same. Since the front and rear positions of the left and right first adjustment nuts (45) are almost the same, one of the first adjustment nuts (45) contacts the LS mounting base (50), and the other contacts the mounting base (50). or slightly later than this. The front and rear positions of the left and right LS operating plates (48) are also almost the same, and they are spaced forward from the operating arms (52) of the left and right LS (51a) (51b), so the left and right LS (51a) ( 51
Neither b) works.

When the height of the overhead wires (5a) (5b) changes, the poles (4a) (4b) rise and fall accordingly, but the left and right poles (4a) (4b) maintain almost the same height relationship. The wire attachment part (
79a) and (79b) are similarly raised and lowered in parallel. Therefore, the left and right threaded rods (44a) (44b) move back and forth in parallel while maintaining almost the same front-to-back positional relationship, and the LS mounting base (50) also moves back and forth together with them. Both the left and right LS (51a) (51b) do not operate.

If the left pole (4a) separates from the overhead wire (5a) and rises while driving, as shown in FIG.
Since the wire attachment part (79a) of this pole (4a) also rises, the wire (54a) on the left side loosens, and the threaded rod (44a) on the left side moves rearward by the force of the spring (49). At this time, the height of the right pole (4b) and its wire attachment part (79b) remains the same as before, so
The right threaded rod (44b) is stopped at the previous position,
The LS mounting base (50) is also stopped at the previous position. Therefore, only the left threaded rod (44a) moves rearward, and the left LS operating plate (48) hits the operating arm (52) of the left LS (51a) to operate it. LS on the left
(51a) is activated and its contact closes, in FIG. 8, since the handbrake switch (63) is closed, it is exactly the same as when either the lowering switch (65) or (66) is pressed. The left pole (4a) is lowered.

While driving, the right pole (4b) is connected to the overhead wire (5).
Even if the pole (4b) is moved up from the track a), this is similarly detected by the pole track disconnection detection device (15), and the pole (4b) is automatically lowered.

[0060] Furthermore, if there is a difference in the height of the left and right poles (4a) (4b) when lowering and raising the poles (4a) (4b) at the time of entering and exiting the warehouse, the left and right LS (51a) ) (51b) is activated, but at this time, the handbrake is activated and the handbrake switch (63) is open, so the LS (51a) is activated.
) (51b) does not affect the lifting and lowering operations of the poles (4a) and (4b).

[0061]

[Effects of the Invention] According to the current collector for a trackless electric train of the present invention, as mentioned above, the trolley pole can be automatically lowered and stored simply by operating the switch means, making the work extremely easy. It is. Furthermore, even if the trolley pole leaves the overhead wire during running, this can be automatically detected and the trolley pole can be lowered, thereby preventing accidents due to the trolley pole leaving the wire.

[Brief explanation of the drawing]

FIG. 1 is a left side view of a current collector for a trackless train showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram schematically showing a part of a current collector.

FIG. 3 is a perspective view of a part of the current collector as seen diagonally from above.

FIG. 4 is a rear view showing an enlarged portion of the left pole lock device and lock release device.

FIG. 5 is a plan view showing an enlarged portion of the pole disconnection detection device.

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a system diagram showing an example of an air circuit for driving an air cylinder.

FIG. 8 is an electrical circuit diagram showing an example of an electrical configuration of a current collector.

[Explanation of symbols]

Claims (1)

[Claims] Claim 1: A pair of left and right swivel stands are provided on the upper part of the vehicle body, which can freely rotate around a vertical axis, and a base end of a trolley pole is attached to each swivel stand so as to be able to swing up and down. In a current collector for a trackless train in which each trolley pole can be raised and lowered individually, a pole lifting actuator is installed between the swivel base and the trolley pole to raise and lower the trolley pole, and a pole lifting actuator is installed on the upper part of the car body. A pole guide device that guides the trolley pole as it descends and always lowers it to a predetermined storage position, a pole lock device that fixes the trolley pole that has descended to the storage position in that position, and a lock release that releases the pole lock device. switch means installed at a predetermined location on the vehicle body to individually command the raising and lowering of each trolley pole, a pole separation detection device that detects when one of the left and right trolley poles is abnormally raised relative to the other; In addition, a command to raise the trolley pole activates the lock release actuator and the actuator for raising/lowering the pole to the upward side, and a command to lower the trolley pole activates the actuator for raising/lowering the pole to the downward side, and one of the left and right trolley poles is activated. A trackless electric train, characterized in that the trackless electric train is equipped with a control means for operating a pole lifting actuator of an abnormally raised trolley pole to the lowering side when a pole separation detection device detects that the trolley pole has risen abnormally relative to the other pole. Current collector.