JP3495286B2 - Circuit breaker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit breaker that opens and closes a passage in a predetermined passage of a vehicle. This breaker can be used, for example, as a breaker (also referred to as a start controller) for restricting passage of an illegal vehicle out of an ETC contract in an ETC (non-stop automatic toll collection system).

[0002]

2. Description of the Related Art For example, when an automatic toll collection system approaches a toll gate on a highway or other toll road, a transmitter provided on the vehicle side transmits the ID number of the vehicle to the toll gate, The toll gate receives this signal and deducts the toll from the deposit account registered for the vehicle, so that the toll payment is completed. Therefore, the vehicle can be paid without stopping at the tollgate, and the congestion at the tollgate is eliminated.

In this case, vehicles passing through the tollgate include vehicles equipped with transmitters and vehicles not equipped with transmitters. Therefore, by providing a dedicated lane for vehicles equipped with transmitters to pass through, It is possible to prevent traffic congestion due to mixture.

However, lanes that can be settled by the wireless device are unmanned, and other lanes have toll collectors, so that there is a problem that vehicles without transmission facilities pass through the unmanned lanes.

As a countermeasure against this, a circuit breaker installed in an unmanned lane to open and close the lane is provided, and the gate is opened immediately for a proper vehicle whose toll is collected by radio, and the vehicle is passed through. A method of closing the circuit breaker immediately afterward can be adopted. In this case, for illegal vehicles such as vehicles that do not have in-vehicle communication devices, because the gate is closed, the vehicle is stopped in front of the gate and the fee is collected by the toll collector. Will be collected.

The conventional circuit breaker used in such an automatic toll collection system is driven by a motor,
A shutoff bar that is rotated about a substantially horizontal axis between a substantially vertical open position that opens the lane and a substantially horizontal closed position that closes the lane, and controls the motor in response to an open command and a close command. And a control unit for controlling. In this conventional circuit breaker, the control unit simply turns on / off the motor. That is, the control unit simply turns on the motor in response to the open command and the close command until the cutoff bar reaches from the closed position or the open position to the open position or the closed position. Therefore, the blocking bar is rapidly accelerated from the closed position or the open position, then rotated at a constant speed, and then rapidly decelerated at the open position or the closed position.

Further, the conventional circuit breaker installed at the entrance and exit of a parking lot is basically constructed in the same manner as the conventional circuit breaker for ETC.

[0008]

However, in the above-mentioned conventional breaker, if the breaker bar of which strength is not so high is used, it is possible to open and close the breaker bar in a short time while ensuring the durability of the breaker bar. ,could not. That is, in the conventional circuit breaker, since the control unit simply turns the motor on and off, the blocking bar is rapidly accelerated or decelerated at the start and stop of rotation. Therefore, in the conventional shutoff bar, when the shutoff bar is opened and closed in a short time, the constant speed is set to be high, so that the rapid acceleration and the rapid deceleration increase. For this reason, a heavy load is applied to the base of the blocking bar, the durability of the blocking bar is reduced, and the blocking bar must be frequently replaced. If this is not done, the root of the blocking bar may break.

By the way, for example, in the case of an ETC circuit breaker, for a proper vehicle whose charge is collected wirelessly, the barrier bar opens in a short time so that the passing speed of the vehicle does not drop as much as possible. It is preferable. In addition, for illegal vehicles that cannot properly collect tolls, such as vehicles that do not have an in-vehicle communication device, make it possible for the driver to quickly recognize that they should stop and prevent collision with the barrier bar. It is preferable that the blocking bar be closed in a short time. Further, in the case of the ETC circuit breaker, a situation may occur in which the vehicle collides with the closed circuit bar. Therefore, even if the vehicle collides with the circuit bar, the vehicle is not damaged or the driver is injured. In addition, it is preferable to use a blocking bar that does not have so high strength.

Further, even if the breaker is not for ETC,
Depending on the application, it is required that the strength of the blocking bar is not so high and that the blocking bar opens and closes in a short time.

The present invention has been made in view of the above-mentioned circumstances. Even when a bar having a low strength is used as the bar, the bar is secured while ensuring the durability of the bar. An object is to provide a circuit breaker that can be opened and closed in a short time.

[0012]

In order to solve the above problems, a circuit breaker according to a first aspect of the present invention includes an actuator and a substantially vertical open position which is driven by the actuator to open a predetermined passage of a vehicle. A shutoff bar that is rotated about a substantially horizontal axis between a substantially horizontal closed position that closes the predetermined passage, and control means that controls the actuator in response to an open command and a close command. is there. When the control means controls the actuator so that the blocking bar rotates from the closed position to the open position in response to the opening command, the blocking bar rotates from the closed position. Immediately after the start, a relatively gentle acceleration is performed in a first step; immediately before the shutoff bar is stopped in the open position; a relatively gentle deceleration; and after the first step, A third step in which the blocking bar is rotated according to a desired speed pattern before the second step, and the speed of the blocking bar in the first step is higher than that in the second step. The actuator is controlled so that changes gently. Further, the control means controls the actuator so that the blocking bar rotates from the open position to the closed position in response to the closing command, the blocking bar rotates from the open position. A fourth step in which the acceleration is relatively gentle immediately after the start, a fifth step in which the shutoff bar is relatively gently decelerated immediately before stopping at the closed position, and a step after the fourth step and Fifth
Before the step, a sixth step in which the blocking bar is rotated according to a desired speed pattern is performed, and the speed of the blocking bar is slower in the fifth step than in the fourth step. The actuator is controlled to change.

According to the first aspect, when the shut-off bar is rotated from the open position to the closed position (normal opening operation), the slow start in the first stage and the slow start in the second stage are performed. A stop is made. Further, when the blocking bar is rotated from the closed position to the open position (in the case of normal closing operation), the slow start in the fourth step and the slow stop in the fifth step are performed. Therefore, according to the first aspect, the load on the root of the blocking bar is reduced as compared with the conventional circuit breaker.

In the first mode, the so-called slow start / slow stop control is used as described above, but not only that, but also a special control based on the inherent property of the circuit breaker is adopted.

That is, as a result of the research conducted by the present inventor, the same absolute acceleration is applied to the blocking bar when the blocking bar is close to the open position and when the blocking bar is close to the closed position. In the case that the blocking bar is close to the closed position, the load on the root of the blocking bar is greater than the load on the root of the blocking bar when the blocking bar is close to the open position. I found that. This is because when the blocking bar is close to the open position, the blocking bar is in a nearly vertical state, so that the influence of gravity of the blocking bar on the bending moment applied to the root of the blocking bar is reduced. The reason is that, when the blocking bar is close to the closed position, the blocking bar is in a state of being almost horizontal, so that the influence of gravity of the blocking bar on the bending moment applied to the root of the blocking bar becomes large. . Therefore, if the absolute value of the acceleration applied to the blocking bar when the blocking bar is close to the closed position is made smaller than the absolute value of the acceleration applied to the blocking bar when the blocking bar is close to the open position, It is possible to open and close the blocking bar in a shorter time while reducing the burden on the root of the bar.

The first aspect is based on the new finding by the inventor, and the first stage (at this stage, the blocking bar is in a position close to the closed position) during the normal opening operation. ), The speed of the blocking bar changes more slowly than in the second step (in this step, the blocking bar is in a position close to the open position).
The speed of the shut-off bar in the stage (in this stage, the shut-off bar is in a position close to the closed position) is higher than that in the fourth stage (in this stage, the shut-off bar is in a position close to the open position). Is gradually changed, the load on the base of the blocking bar can be further reduced and the blocking bar can be opened and closed in a shorter time.

As described above, according to the first aspect,
In addition to using slow start / slow stop control,
By performing control in consideration of the influence of gravity of the blocking bar, it is possible to open and close the blocking bar in a short time while reducing the load on the root of the blocking bar. Therefore,
Even when the breaker having a relatively low strength is used, such as when the breaker is configured for ETC, the breaker bar can be opened and closed in a short time while ensuring the durability of the breaker bar.

A circuit breaker according to a second aspect of the present invention is the circuit breaker according to the first aspect, wherein in the third stage, the barrier bar is accelerated relatively rapidly after the first stage. A step, an eighth step in which the shut-off bar is accelerated relatively slowly after the seventh step, a ninth step in which the shut-off bar is decelerated relatively slowly after the eighth step, and a ninth step And a tenth step in which the blocking bar is decelerated relatively rapidly before the second step. The sixth step includes an eleventh step in which the shutoff bar is accelerated relatively rapidly after the fourth step, and a twelfth step in which the shutoff bar is relatively slowly accelerated after the eleventh step.
Step 13; after the twelfth step, the blocking bar is decelerated relatively slowly; and thirteenth step; and after the thirteenth step and before the fifth step, the blocking bar is decelerated relatively rapidly. 14th stage.

In the first aspect, the third stage which is an intermediate stage between the first stage and the second stage, and the intermediate stage between the fourth stage and the fifth stage. In the sixth step, the blocking bar may be rotated according to a desired speed pattern. However, if the speed patterns of the third step and the sixth step are determined as in the second aspect, the blocking bar may be rotated. It is possible to open and close the blocking bar in a shorter time while further reducing the burden on the root of the.

A circuit breaker according to a third aspect of the present invention is the circuit breaker according to the second aspect, wherein the control means has a speed of the barrier bar in the seventh step is higher than that in the tenth step. The actuator is controlled so that the speed of the shut-off bar changes more gently in the fourteenth step than in the eleventh step, while changing gently.

According to this third aspect, the seventh step and the tenth step in the third step which is an intermediate step in the normal opening operation and the intermediate step in the normal closing operation in the third step. Even in the six stages, the control is performed in consideration of the influence of the gravity of the blocking bar based on the new knowledge of the present inventor. Therefore, it is possible to open and close the blocking bar in a shorter time while further reducing the load on the root of the blocking bar.

A circuit breaker according to a fourth aspect of the present invention is the circuit breaker according to the second or third aspect, wherein the control means includes the first, second, fourth, fifth, seventh to seventh layers. In each stage of 14, the actuator is controlled so that the speed of the blocking bar changes at a constant acceleration.

According to the fourth aspect, the speed of the blocking bar is controlled so as to change at a constant acceleration in each stage, so that the control becomes easy.

A circuit breaker according to a fifth aspect of the present invention is the circuit breaker according to the second or third aspect, wherein the control means is arranged so that the speed of the circuit bar changes substantially smoothly. It controls the actuator.

According to the fifth aspect, since the speed of the blocking bar is controlled so as to change substantially smoothly, the load on the root of the blocking bar can be further reduced.

A circuit breaker according to a sixth aspect of the present invention is the circuit breaker according to any one of the first to fifth aspects,
The control means, when the opening command is received while the blocking bar is rotating from the open position to the closed position, the blocking bar is temporarily stopped and then the open position is changed to the open position. The actuator is controlled to rotate up to. At this time, the control means decelerates the interruption bar relatively gently immediately before the temporary stop according to a desired speed pattern determined according to the position of the interruption bar when the opening command is received. The actuator is controlled so that it is accelerated relatively slowly immediately after the stop and is decelerated relatively gently immediately before the stop at the open position.

According to the sixth aspect, it is possible to quickly return to the open position even during the normal closing operation. Then, in the process of returning to the open position, the shut-off bar is decelerated relatively slowly immediately before the stop, is accelerated relatively slowly immediately after the stop, and is slowly decelerated and slowed immediately before the stop in the open position. Start / slow stop control is used. Therefore, even when returning to the open position from the middle of the normal closing operation, the load on the base of the blocking bar can be reduced and the blocking bar can be returned to the open position in a short time.

A circuit breaker according to a seventh aspect of the present invention is the circuit breaker according to the sixth aspect, wherein the control means is in the process of rotating the block bar from the open position to the closed position. When the actuator is controlled so as to rotate from the stop position to the open position after the stop bar is temporarily stopped when the open bar is received at The speed of the blocking bar changes gently compared to immediately after starting rotation from the open position, and the blocking bar of the blocking bar immediately after the stop is compared to immediately before the blocking bar stops at the open position. The actuator is controlled so that the speed changes gently.

According to the seventh aspect, even when returning to the open position from the middle of the normal closing operation, the influence of the gravity of the blocking bar is taken into consideration based on the above-mentioned new finding by the present inventor. Control. Therefore, even when returning to the open position from the middle of the normal closing operation, it is possible to return the cutoff bar to the open position in a shorter time while further reducing the load on the root of the shutoff bar.

The circuit breaker according to an eighth aspect of the present invention is the circuit breaker according to any one of the first to seventh aspects, wherein the control means rotates the blocking bar from the closed position to the open position. When the closing command is received during the movement, the actuator is controlled so that the shut-off bar temporarily stops and then rotates from the stop position to the closed position. At this time, the control means decelerates the shut-off bar relatively gently immediately before the temporary stop according to a desired speed pattern determined according to the position of the shut-off bar when receiving the close command. The actuator is controlled so that it is accelerated relatively slowly immediately after the stop and is relatively slowly decelerated immediately before stopping at the closed position.

According to the eighth aspect, the closed position can be quickly returned even during the normal opening operation. Then, in the process of returning to the closed position, the shut-off bar is relatively slowly decelerated immediately before the stop, is relatively slowly accelerated immediately after the stop, and is relatively slowly decelerated immediately before it is stopped in the open position, and is thrown. Start / slow stop control is used. Therefore, even when returning to the closed position from the middle of the normal opening operation, it is possible to return the blocking bar to the closed position in a short time while reducing the burden on the root of the blocking bar.

A circuit breaker according to a ninth aspect of the present invention is the circuit breaker according to the eighth aspect, wherein the control means is in the middle of rotating the block bar from the closed position to the open position. When the closing bar is temporarily stopped and then the actuator is controlled so as to rotate from the stop position to the closed position, the blocking bar starts rotating from the closed position. Immediately after that, the speed of the blocking bar changes more slowly than immediately before the stop, and immediately before the blocking bar stops at the closed position compared to immediately after the stop. The actuator is controlled so that the speed of the actuator changes gently.

According to the ninth aspect, even when returning to the closed position from the middle of the normal opening operation, the influence of the gravity of the blocking bar is taken into consideration based on the new knowledge of the present inventor. Control. Therefore, even when returning to the closed position from the middle of the normal opening operation, it is possible to further reduce the load on the base of the blocking bar and return the blocking bar to the closed position in a shorter time.

The circuit breaker according to a tenth aspect of the present invention is the circuit breaker according to any one of the second to fifth aspects, wherein the control means directs the blocking bar from the open position to the closed position. When the opening command is received at any one of the fourth stage, the eleventh stage, and the twelfth stage, which are in the middle of rotation, the shut-off bar is temporarily stopped and then the The actuator is controlled so as to rotate to the open position. At this time, the control means decelerates the interruption bar relatively gently immediately before the temporary stop according to a desired speed pattern determined according to the position of the interruption bar when the opening command is received. The actuator is controlled so that it is accelerated relatively slowly immediately after the stop and is decelerated relatively gently immediately before the stop at the open position.

According to the tenth aspect, it is possible to quickly return to the open position even during the normal closing operation. Then, in the process of returning to the open position, the shut-off bar is decelerated relatively slowly immediately before the stop, is accelerated relatively slowly immediately after the stop, and is slowly decelerated and slowed immediately before the stop in the open position. Start / slow stop control is used. Therefore, even when returning to the open position from the middle of the normal closing operation, the load on the base of the blocking bar can be reduced and the blocking bar can be returned to the open position in a short time.

The circuit breaker according to an eleventh aspect of the present invention is the circuit breaker according to the tenth aspect, wherein the control means is any one of the fourth stage, the eleventh stage and the twelfth stage. When the opening command is received, the speed of the blocking bar changes more gently immediately before the temporary stop than immediately after the blocking bar starts rotating from the open position, and the temporary stop occurs. Immediately after that, the actuator is controlled so that the speed of the blocking bar changes more gently than immediately before the blocking bar stops at the open position.

According to the eleventh aspect, even when returning to the open position from the middle of the normal closing operation, the influence of the gravity of the blocking bar is taken into consideration, based on the above-mentioned new finding by the present inventor. Control. Therefore, even when returning to the open position from the middle of the normal closing operation, it is possible to return the cutoff bar to the open position in a shorter time while further reducing the load on the root of the shutoff bar.

A circuit breaker according to a twelfth aspect of the present invention is the circuit breaker according to any one of the second to fifth, tenth, and eleventh aspects, wherein the control means controls the blocking bar from the closed position. When the closing command is received at any one of the first step, the seventh step, and the eighth step while rotating toward the open position, the blocking bar is temporarily stopped. After that, the actuator is controlled so as to rotate from the stop position to the closed position. At this time, the control means decelerates the shut-off bar relatively gently immediately before the temporary stop according to a desired speed pattern determined according to the position of the shut-off bar when receiving the close command. The actuator is controlled so that it is accelerated relatively slowly immediately after the stop and is relatively slowly decelerated immediately before stopping at the closed position.

According to the twelfth aspect, it is possible to quickly return to the closed position even during the normal opening operation. Then, in the process of returning to the closed position, the shut-off bar is relatively slowly decelerated immediately before the stop, is relatively slowly accelerated immediately after the stop, and is relatively slowly decelerated immediately before it is stopped in the open position, and is thrown. Start / slow stop control is used. Therefore, even when returning to the closed position from the middle of the normal opening operation, it is possible to return the blocking bar to the closed position in a short time while reducing the burden on the root of the blocking bar.

A circuit breaker according to a thirteenth aspect of the present invention is the circuit breaker according to the twelfth aspect, wherein the control means performs the step in any one of the first step, the seventh step and the eighth step. When a closing command is received, the speed of the blocking bar changes more slowly immediately after the blocking bar starts rotating from the closed position than immediately before the temporary stop, and the blocking bar stops at the closed position. The actuator is controlled so that the speed of the blocking bar changes more gently immediately before the operation than immediately after the stop.

According to the thirteenth aspect, even when returning to the closed position from the middle of the normal opening operation, the influence of the gravity of the blocking bar is taken into consideration based on the new knowledge of the present inventor. Control. Therefore, even when returning to the closed position from the middle of the normal opening operation, it is possible to further reduce the load on the base of the blocking bar and return the blocking bar to the closed position in a shorter time.

[0042]

BEST MODE FOR CARRYING OUT THE INVENTION A circuit breaker according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

FIG. 1 is a schematic perspective view showing a use state of a pair of breakers 1 and 1'according to the present embodiment. In FIG. 1, X indicates the traveling direction of the vehicle. FIG. 2 is a schematic block diagram showing an electrical configuration of one circuit breaker 1 according to the present embodiment.

In this embodiment, a pair of circuit breakers 1, 1 '
Is used as a breaker for ETC, and as shown in FIG. 1, the tollgate islands 2 of highways and other toll roads.
It is installed on each of the islands 2 and 2'so as to open and close the passage of vehicles in the lane (vehicle passage) 3 between 2 '. Although the circuit breakers 1 and 1 ′ are configured symmetrically to each other, their structures are substantially the same, and therefore only one circuit breaker 1 will be described below. In addition, if the length of the blocking bar 12 is increased, only one circuit breaker 1 may be used.

The circuit breaker 1 is, as shown in FIGS. 1 and 2,
The circuit breaker main body 10, an electric motor 11 as an actuator, a substantially vertical open position P7 (see FIG. 4 to be described later) that is driven by the motor 11 to open the lane 3, and a substantially horizontal closed position P1 that closes the lane 3 ( (See FIG. 4), a shutoff bar 12 that is rotated about a substantially horizontal axis, and a control unit 14 that controls the motor 11 via a drive circuit 13 in response to an open command and a close command that are input. And the shutoff bar 12 opens to the open position P.
7, an open position detector 15 such as a micro switch for detecting the arrival at 7 and a closed position detector 16 for the micro switch or the like for detecting that the blocking bar 12 reaches the closed position P1.
It has and.

In order to improve safety so that the vehicle will not be damaged or the driver will not be injured even if the vehicle collides with the blocking bar 12, the blocking bar 12 is not so strong. ing. For example, the blocking bar 12
Can have a structure in which styrofoam is wrapped around glass fiber.

The motor 11, the drive circuit 13, the controller 14 and the detectors 15 and 16 are housed in the main body 10.
As the motor 11, for example, a servo motor or a stepping motor can be used. Instead of the motor 11, for example, another actuator such as a hydraulic actuator may be used. Further, the control unit 14 is configured using, for example, a microcomputer or the like.

Next, the control by the control unit 14 will be described with reference to FIGS. FIG. 3 is a diagram showing a control pattern by the control unit 14. In FIG. 3, the horizontal axis represents elapsed time and the vertical axis represents the speed (angular speed) of the blocking bar 12. The upper part of the vertical axis with respect to the zero level is the blocking bar 1
2 shows the speed in the opening direction (direction toward the open position P7), and the lower side with respect to the zero level on the vertical axis shows the speed in the closing direction of the blocking bar 12 (direction toward the closed position P1). Also, FIG.
FIG. 4 is a diagram showing the relationship between the positions (rotational positions) P1 to P7 of the blocking bar 12 and the movement times t1 to t6 between them according to the speed pattern shown by the solid line in FIG.

In this embodiment, when an opening command is input to the control unit 14 when the shutoff bar 12 is at the closed position P1,
The control unit 14 responds to the opening command by transmitting the point A1 in FIG.
In accordance with the speed pattern indicated by the solid line of → point A2 → point A3 → point A4 → point A5 → point A6 → point A7, the motor 11 is operated so that the shutoff bar 12 rotates from the closed position P1 to the open position P7.
To control.

Time points T1 to T7 of points A1 to A7 correspond to positions P1 to P7 of the blocking bar 12, respectively. The time point T1 of the point A1 indicates the time point when the opening command is input to the control unit 14 when the blocking bar 12 is at the closed position P1. Therefore, the velocity at the point A1 is zero.

From time T1 to time T2 after time t1 (that is, immediately after the blocking bar 12 starts rotating from the closed position P1), the blocking bar 12 relatively slowly maintains a constant acceleration (that is, a constant inclination). Is accelerated by (A1 →
A2, first stage). Time point T3 after time t2 from time point T2
Until then, the blocking bar 12 is accelerated relatively rapidly at a constant acceleration (A2 → A3, seventh stage). Time t3 from time T3
Until later time point T4, the blocking bar 12 is accelerated relatively slowly (A3 → A4, eighth stage). From time T4 to time t
The blocking bar 12 is decelerated relatively slowly until time T5 after 4 (A4 → A5, ninth stage). From time T5 to time T6 after time t5, the blocking bar 12 is decelerated relatively rapidly (A5 → A6, 10th stage). From time T6 to time T7 after time t6 (that is, immediately before the blocking bar 12 stops at the open position P7), the blocking bar 12 is decelerated relatively slowly (A6 → A7, second stage). A time point T7 of the point A7 indicates a time point when the blocking bar 12 reaches the open position P7. Therefore, the velocity at point A7 is zero.

The point A1 is closer to the point A2 than the point A2.
Compared with the stage from 6 to point A7, the speed of the blocking bar 12 changes more slowly (that is, the absolute value of the acceleration of the blocking bar 12 is smaller). Further, the speed of the shutoff bar 12 changes more gently in the stage from the point A2 to the point A3 than in the stage from the point A5 to the point A6 (that is, the absolute value of the acceleration of the shutoff bar 12 is Is getting smaller).

Here, the speed pattern from point A1 to point A2 is the acceleration pattern K1, the speed pattern from point A2 to point A3 is the acceleration pattern K2, and the speed pattern from point A3 to point A4 is the acceleration pattern K3 and point A4. To the point A5 to the speed pattern G1, the point A5 to the point A
The speed pattern up to 6 is called a deceleration pattern G2, and the speed pattern from points A6 to A7 is called a deceleration pattern G3.

Further, in the present embodiment, when the closing command is input to the control unit 14 when the shutoff bar 12 is at the open position P7, the control unit 14 responds to the closing command, and in FIG. According to the speed pattern shown by the solid line of point B1 → point B2 → point B3 → point B4 → point B5 → point B6 → point B7
The motor 11 is controlled so that is rotated from the open position P7 to the closed position P1.

Time points T11 to T17 from point B1 to point B7 are
Each corresponds to the positions P7 to P1 of the blocking bar 12. At the time point T11 of the point B1, the blocking bar 12 is at the open position P7.
In the case of 1), the time when the closing command is input to the control unit 14 is shown. Therefore, the speed at the point B1 is zero.

From time T11 to time T12 after time t6 (that is, immediately after the blocking bar 12 starts rotating from the open position P7), the blocking bar 12 is relatively gently accelerated with a constant acceleration (B1). → B2, 4th stage). Time point T
From 12 to time T13 after time t5, the blocking bar 12 is relatively rapidly accelerated with a constant acceleration (B2 → B3, 11th stage). From time T13 to time T14 after time t4, the shut-off bar 12 is accelerated relatively slowly (B3 →
B4, stage 12). From time T14 to time T15 after time t3, the blocking bar 12 is decelerated relatively slowly (B4 → B5, 12th stage). From time T15 to time t2
Until later time point T16, the blocking bar 12 is decelerated relatively rapidly (B5 → B6, 13th stage). From time T16 to time T17 after time t1 (that is, immediately before the blocking bar 12 stops at the closed position P1), the blocking bar 12 is decelerated relatively slowly (B6 → B7, fifth stage). A time point T17 of the point B7 indicates a time point when the blocking bar 12 reaches the closed position P1. Therefore, the speed at the point B7 is zero.

The stage from point B6 to point B7 is the point B
Compared to the stage from 1 to point B2, the speed of the shutoff bar 12 changes more slowly (that is, the absolute value of the acceleration of the shutoff bar 12 is smaller). Further, in the stage from point B5 to point B6, the speed of the blocking bar 12 changes more gently than in the stage from point B2 to point B3 (that is, the absolute value of the acceleration of the blocking bar 12 is Is getting smaller).

Here, the speed pattern from point B1 to point B2 is the acceleration pattern K4, the speed pattern from point B2 to point B3 is the acceleration pattern K5, and the speed pattern from point B3 to point B4 is the acceleration pattern K6 and point B4. To the point B5, the speed pattern is the deceleration pattern G4, the point B5 to the point B
The speed pattern up to 6 is called deceleration pattern G5, and the speed pattern from point B6 to point B7 is called deceleration pattern G6.

In this embodiment, point A1 → point A2
→ Point A3 → Point A4 → Point A5 → Point A6 → Point A7 indicated by the solid line of the speed pattern and point B1 → Point B2 → Point B3 → Point B4 → Point B5 → Point B6 → Point B7 indicated by the solid line Each speed pattern is determined so that the figure of the pattern completely overlaps when one figure is rotated 180 ° in FIG.

Further, in this embodiment, the control unit 14 is
When the shutoff bar 12 receives a close command at the stage of point A1 → point A2 → point A3 → point A4 which is in the process of rotating from the closed position P1 to the open position P7, the shutoff bar 12 is temporarily stopped. After that, the motor 11 is controlled so as to rotate from the stop position to the closed position P1. At this time, the control unit 14
The blocking bar 12 is temporarily stopped according to a desired speed pattern determined according to the position of the blocking bar 12 when receiving the closing command (this position corresponds to the elapsed time from the point A1). The motor 1 is decelerated relatively slowly immediately before, and is relatively gently accelerated immediately after the temporary stop, and is decelerated relatively gently immediately before stopping at the closed position P1.
Control 1 Further, at this time, the control unit 14 causes the speed of the blocking bar 12 to change more gently immediately after the blocking bar 12 starts to rotate from the closed position P1 than immediately before the temporary stop, and the closed position P1. The motor 11 is controlled so that the speed of the shut-off bar 12 changes more gently just before the stop just after the stop.

Specifically, in this embodiment, the control unit 1
4 is point A3 → point A4 → point A5 → point A6 when a close command is received at point D1 which has a stage from point A1 to point A2.
→ The reduction ratio of the solid line figure of point A7 determined by point D1 (point D1
Point D1 → point D2, which corresponds to a figure (similar figure) reduced according to the reduction rate obtained by dividing the speed of No. 1 by the speed of point A3)
The motor 11 is controlled so that the shutoff bar 12 is temporarily stopped at the point D2 according to the speed pattern indicated by the broken line.
After that, the control unit 14 controls the solid line from point A1 to point D1 and point D1.
According to the speed pattern indicated by the one-dot chain line of point D2 → point D3, which corresponds to the figure formed by rotating the figure consisting of the broken line of 1 → point D2 by 180 °, the shut-off bar 12 closes the closed position P1 (point D
The motor 11 is controlled so that the motor 11 is stopped (corresponding to 3).

Similarly, the control unit 14 controls the points A2 to A3.
When a closing command is received at a point E1 having steps up to the step A1, the solid line figure of the point A3 → point A4 → point A5 → point A6 → point A7 is reduced by the point E1 (the speed of the point E1 is set to the point A3. According to the speed pattern indicated by the broken line from point E1 to point E2, which corresponds to a figure (similar figure) reduced according to the reduction rate obtained by dividing by the speed of Control 11 After that, the control unit 14
Is a solid line of point A1 → point A2 → point E1 and point E1 → point E2
The shut-off bar 1 according to the speed pattern (not shown) corresponding to the figure formed by rotating the figure consisting of the broken line of FIG.
The motor 11 is controlled so that 2 stops at the closed position P1.

Further, when the control unit 14 receives the close command at the point F1 which has a stage from the point A3 to the point A4, the control section 14 gives the point A
Corresponds to a figure (similar figure) reduced according to the reduction rate (the reduction rate obtained by dividing the speed of point F1 by the speed of point A4) of the solid line figure of 4 → point A5 → point A6 → point A7. Then, the motor 11 is controlled so that the shut-off bar 12 is temporarily stopped at the point F2 according to the speed pattern indicated by the broken line from the point F1 to the point F2. After that, the control unit 14 controls the point A1 →
The shutoff bar 12 stops at the closed position P1 according to a speed pattern (not shown) corresponding to a figure obtained by rotating the figure consisting of the solid line of points A2 → A3 → point F1 and the broken line of point F1 → point F2 by 180 °. Thus, the motor 11 is controlled.

In the control unit 14, the shutoff bar 12 has a point A.
When a close command is received at the stage of 4 → point A5 → point A6,
Point A7 according to the remaining speed pattern shown by the solid line
After controlling the motor 11 so that the point shut-off bar 12 is temporarily stopped at, point B1 → point B2 → point B3 → point B4 →
It is preferable to control the motor 11 so as to rotate to the closed position P1 according to the speed pattern of point B5 → point B6.

Further, in the present embodiment, the control unit 14 is
When the shutoff bar 12 receives an open command at the stage of point B1 → point B2 → point B3 → point B4 which is in the process of rotating from the open position P7 to the closed position P1, the shutoff bar 12 is temporarily stopped. After that, the motor 11 is controlled so as to rotate from the stop position to the open position P7. At this time, the control unit 14
The blocking bar 12 is temporarily stopped according to a desired speed pattern determined according to the position of the blocking bar 12 when receiving the opening command (this position corresponds to the elapsed time from the point B1). The motor 1 is decelerated relatively slowly immediately before, and is gradually accelerated immediately after the temporary stop, and is decelerated relatively gently immediately before stopping at the open position P7.
Control 1 In addition, at this time, the control unit 14 causes the speed of the blocking bar 12 to change more gently immediately before the temporary stop than when the blocking bar 12 starts to rotate from the open position P7, and the temporary stop is performed. The barrier bar 12 immediately after is compared with the barrier bar 12 immediately before stopping at the open position P7.
The motor 11 is controlled so that the speed of is gradually changed.

Specifically, in this embodiment, the control unit 1
4 is point B3 → point B4 → point B5 → point B6 when an open command is received at point H1 which has a stage from point B1 to point B2.
→ The reduction ratio of the solid line figure of point B7 determined by point H1 (point H1
Point H1 → point H2, which corresponds to a figure (similar figure) reduced according to the reduction rate obtained by dividing the speed of 1 by the speed of point B3)
The motor 11 is controlled so that the shutoff bar 12 is temporarily stopped at the point H2 according to the speed pattern indicated by the broken line.
After that, the control unit 14 controls the solid line from the point B1 to the point H1 and the point H.
In accordance with a speed pattern indicated by a chain line of point H2 → point H3, which corresponds to a figure obtained by rotating the figure consisting of the broken line of 1 → point H2 by 180 °, the shutoff bar 12 opens the position P7 (point H
The motor 11 is controlled so that the motor 11 is stopped (corresponding to 3).

Similarly, the control unit 14 controls the points B2 to B3.
If an open command is received at a point J1 that has a stage up to, the reduction ratio of the solid line figure of the point B3 → the point B4 → the point B5 → the point B6 → the point B7 is determined by the point J1 (the speed of the point J1 is set to the point B3. According to the speed pattern indicated by the broken line from point J1 to point J2, which corresponds to a figure (similar figure) reduced according to the reduction ratio obtained by dividing by the speed of Control 11 After that, the control unit 14
Is a solid line of point B1 → point B2 → point J1 and point J1 → point J2
The shut-off bar 1 according to the speed pattern (not shown) corresponding to the figure formed by rotating the figure consisting of the broken line of FIG.
The motor 11 is controlled so that 2 stops at the open position P7.

Further, when the control section 14 receives an open command at the point L1 which has a stage from the point B3 to the point B4, the point B
Corresponds to a figure (similar figure) reduced according to the reduction rate (the reduction rate obtained by dividing the speed of point L1 by the speed of point B4) of the solid line figure of 4 → point B5 → point B6 → point B7. Then, the motor 11 is controlled so that the shutoff bar 12 is temporarily stopped at the point L2 in accordance with the speed pattern indicated by the broken line from the point L1 to the point L2. After that, the control unit 14 controls the point B1 →
The shutoff bar 12 is stopped at the closed position P1 according to a speed pattern (not shown) corresponding to a figure obtained by rotating a figure consisting of a solid line of points B2 → B3 → point L1 and a broken line of point L1 → point L2 by 180 °. Thus, the motor 11 is controlled.

In the control unit 14, the shut-off bar 12 is at the point B.
When a close command is received in the sequence of 4 → point B5 → point B6,
Point B6 according to the remaining speed pattern indicated by the solid line
After controlling the motor 11 so that the point shut-off bar 12 temporarily stops at, point A1 → point A2 → point A3 → point A4 →
It is preferable to control the motor 11 so as to rotate to the open position P7 according to the speed pattern of point A5 → point A6.

Here, an example of a flow chart for realizing the operation of the control unit 14 described above will be described with reference to FIGS.

As shown in FIG. 5, when the operation is started, the control unit 14 determines whether or not an open command has been input (step S1). If the open command is input, the control unit 14 performs the open control (step S2), and if the open command is not input, the process proceeds to step S3. Step S3
Then, the control unit 14 determines whether or not the close command is input. If the close command is input, the control unit 14 performs the close control (step S4), and then returns to step S1. On the other hand, if the close command is not input, the process directly returns to step S1.

Although not shown in the drawing, the acceleration patterns K1 to K are previously stored in the memory built in the control unit 14.
6 and data indicating the deceleration patterns G1 to G6 are stored. These data can be, for example, a set of inclinations (increases or decreases in speed per unit time) of the patterns K1 to K6 and G1 to G6 and pattern durations t1 to t6 corresponding to them. . Further, the speed of points A3, A4, B3, B4 is also stored in advance in the memory of the control unit 14 in order to obtain the above-described reduction rate.

In the opening control of step S2 in FIG.
And the processing shown in FIG. 7 is performed. When the opening control of step S2 is started, the control unit 14 resets the flag (step S10) and starts the control according to the acceleration pattern K1 (step S11).

Next, the control unit 14 determines whether or not the closing command is input (step S12), and if the closing command is not input, the process proceeds to step S13. on the other hand,
If the close command is input, after the flag is set (step S23), steps S27 to S31, S described later are performed.
The reduction ratio used in S34 to S37 is determined (step S2
4), the process proceeds to step S27. This reduction ratio is
It corresponds to the speed of the middle point D1 divided by the speed of the point A3, and is stored in advance in the memory and the elapsed time from the opening control start time to the present time (this time is measured by the control unit 14). It can be obtained based on the speed of the point A3 that is present.

In step S13, the control unit 14 determines whether or not the control of the acceleration pattern K1 is completed by determining whether or not the pattern duration time t1 has elapsed since the control of the acceleration pattern K1 was started in step S11. Determine whether or not. If the control of the acceleration pattern K1 has not ended, the process returns to step S12, and if the control of the acceleration pattern K1 has ended, the control unit 14 starts control according to the acceleration pattern K2 (step S14).

After that, the control unit 14 determines whether or not the close command is input (step S15). If the close command is not input, the process proceeds to step S16. On the other hand, if the close command is input, step S2 described below is performed.
The reduction rate used in 7 to S31 and S33 to S37 is determined (step S25), and the process proceeds to step S27. This reduction rate corresponds to the speed of the point E1 in FIG. 3 divided by the speed of the point A3, and corresponds to the elapsed time from the opening control start time to the present time and the speed of the point A3 stored in advance in the memory. Can be obtained based on.

In step S16, the control unit 14 starts the control of the acceleration pattern K2, and then the pattern continuation time t
By determining whether 2 has elapsed, it is determined whether the control of the acceleration pattern K2 has ended. If the control of the acceleration pattern K2 has not ended, the process returns to step S15, and if the control of the acceleration pattern K2 has ended, the control unit 14 starts the control according to the acceleration pattern K3 (step S17).

Next, the control unit 14 determines whether or not the closing command is input (step S18). If the closing command is not input, the process proceeds to step S19. on the other hand,
If the close command is input, step S28-
The reduction rate used in S31 and S33 to S37 is determined (step S26), and the process proceeds to step S28. This reduction rate corresponds to the speed of the point F1 in FIG. 3 divided by the speed of the point A4, and corresponds to the elapsed time from the opening control start time to the current time and the speed of the point A4 stored in advance in the memory. Can be obtained based on.

In step S19, the control section 14 starts the control of the acceleration pattern K3, and then the pattern continuation time t.
By determining whether 3 has elapsed, it is determined whether the control of the acceleration pattern K3 has ended. If the control of the acceleration pattern K3 has not ended, the process returns to step S18. If the control of the acceleration pattern K3 has ended, the control unit 14 performs control according to the deceleration pattern G1 until it ends (step S20). ).

Next, the control unit 14 carries out control according to the deceleration pattern G2 until it is completed (step S2
1) The control according to the deceleration pattern G3 is performed until it ends (step S22), and the closing control of step S2 ends. This time point corresponds to point A7 in FIG.

In step S27, the control unit 14 performs control according to the acceleration pattern K3 and the reduced acceleration pattern K3 obtained based on the current reduction rate until the end,
Control goes to step S28. This reduced acceleration pattern K3
Is a set of, for example, the same slope as the acceleration pattern K3 and the pattern duration obtained by multiplying the pattern duration t3 of the acceleration pattern K3 by the current reduction rate. This point corresponds to each reduction deceleration pattern G described later.
1 to G6 and the reduced acceleration patterns K1 to K6,
It is the same.

In step S28, the control unit 14 performs control according to the deceleration pattern G1 and the reduction deceleration pattern G1 obtained based on the current reduction ratio until the end thereof.

Thereafter, the control section 14 determines the deceleration pattern G2.
And the reduction deceleration pattern G2 obtained based on the current reduction ratio
Control is performed until it is completed (step S2
9) The control according to the deceleration pattern G3 and the reduction deceleration pattern G3 obtained based on the current reduction ratio is performed until the end (step S30). The time point when step S30 ends corresponds to points D2, E2, and F2 in FIG.

Next, the control unit 14 performs control according to the acceleration pattern K4 and the reduced acceleration pattern K4 obtained based on the current reduction rate until the end thereof (step S3).
1), it is determined whether or not the flag is set (step S32). If the flag is set, the process immediately proceeds to step S34, and if the flag is not set, the control unit 14 performs control according to the acceleration pattern K5 and the reduced acceleration pattern K5 obtained based on the current reduction rate. After the above is completed (step S33), the process proceeds to step S34.

In step S34, the control unit 14 performs control according to the acceleration pattern K6 and the reduced acceleration pattern K6 obtained based on the current reduction rate until the end thereof.

Thereafter, the control unit 14 controls the deceleration pattern G4.
And the reduction deceleration pattern G4 obtained based on the current reduction ratio
The control according to step S3 is performed until it ends (step S3
5) The control according to the deceleration pattern G5 and the reduction deceleration pattern G5 obtained based on the current reduction ratio is performed until it ends (step S36), and the reduction obtained based on the deceleration pattern G6 and the current reduction ratio is performed. The control according to the deceleration pattern G6 is performed until it ends (step S37),
The opening control of step S2 is completed. This time point corresponds to point D3 in FIG.

Although not shown in the drawing, it is determined in steps S20, S21 and S22 whether or not the closing command is input. If the closing command is not input,
When the control according to the deceleration patterns G1, G2, G3 is completed, the opening control of step S2 is ended, while when the close command is input, the control according to the deceleration patterns G1, G2, G3 is completed. Later acceleration pattern K4, K5, K
6 and deceleration patterns G4, G5, G6 may be performed, and when this is completed, the opening control of step S2 may be terminated.

In the closing control of step S4 in FIG.
And the processing shown in FIG. 9 is performed. When the opening control of step S4 is started, the control unit 14 resets the flag (step S40) and starts control according to the acceleration pattern K4 (step S41).

Next, the control unit 14 determines whether or not the open command is input (step S42), and if the open command is not input, the process proceeds to step S43. on the other hand,
If the open command is input, after setting the flag (step S53), steps S57 to S61, S described later are performed.
The reduction ratio used in 64-S67 is determined (step S5
4), the process proceeds to step S57. This reduction ratio is
It corresponds to the speed of the middle point H1 divided by the speed of the point B3, and is stored in advance in the memory and the elapsed time from the closing control start time to the present time (this time is measured by the control unit 14). It can be obtained based on the speed of the point B3 that is being set.

In step S43, the control unit 14 determines whether or not the control of the acceleration pattern K4 has ended by determining whether or not the pattern duration time t6 has elapsed since the control of the acceleration pattern K4 was started in step S41. Determine whether or not. If control of the acceleration pattern K4 has not ended, the process returns to step S42, and if control of the acceleration pattern K4 has ended, the control unit 14 starts control according to the acceleration pattern K5 (step S44).

Thereafter, the control unit 14 determines whether or not the open command is input (step S45), and if the open command is not input, the process proceeds to step S46. On the other hand, if the open command is input, step S5 described later will be performed.
The reduction ratio used in 7 to S61 and S63 to S67 is determined (step S55), and the process proceeds to step S57. This reduction rate corresponds to the speed of the point J1 in FIG. 3 divided by the speed of the point B3, and corresponds to the elapsed time from the closing control start time to the present time and the speed of the point B3 stored in advance in the memory. Can be obtained based on.

In step S46, the control unit 14 starts the control of the acceleration pattern K5, and then the pattern continuation time t.
By determining whether 5 has elapsed, it is determined whether the control of the acceleration pattern K5 is completed. If the control of the acceleration pattern K5 has not ended, the process returns to step S45, and if the control of the acceleration pattern K5 has ended, the control unit 14 starts control according to the acceleration pattern K6 (step S47).

Next, the control unit 14 determines whether or not the open command is input (step S48), and if the open command is not input, the process proceeds to step S49. on the other hand,
If the open command has been input, step S58 to be described later
The reduction rate used in S61 and S63 to S67 is determined (step S56), and the process proceeds to step S58. This reduction rate corresponds to the speed at the point L1 in FIG. 3 divided by the speed at the point B4, and is calculated as the elapsed time from the closing control start time to the present time and the speed at the point B4 stored in advance in the memory. Can be obtained based on.

In step S49, the control unit 14 starts the control of the acceleration pattern K6 and then continues the pattern continuation time t.
By determining whether 4 has elapsed, it is determined whether control of the acceleration pattern K6 is completed. If the control of the acceleration pattern K6 is not completed, the process returns to step S48. If the control of the acceleration pattern K6 is completed, the control unit 14 performs the control according to the deceleration pattern G4 until it is completed (step S50). ).

Next, the control unit 14 carries out the control according to the deceleration pattern G5 until it ends (step S5).
1) The control according to the deceleration pattern G3 is performed until it ends (step S52), and the opening control of step S4 ends. This time point corresponds to point B7 in FIG.

In step S57, the control unit 14 performs control according to the acceleration pattern K6 and the reduction acceleration pattern K6 obtained based on the current reduction rate until the end,
Control goes to step S58.

In step S58, the control unit 14 performs control according to the deceleration pattern G4 and the reduction deceleration pattern G4 obtained based on the current reduction ratio until the end thereof.

Thereafter, the control section 14 determines the deceleration pattern G5.
And the reduction deceleration pattern G5 obtained based on the current reduction ratio
The control according to step S5 is performed until it ends (step S5
9) The control according to the deceleration pattern G6 and the reduction deceleration pattern G6 obtained based on the current reduction ratio is performed until the end (step S60). The time point when step S60 ends corresponds to points H2, J2, and L2 in FIG.

Next, the control unit 14 performs control according to the acceleration pattern K1 and the reduced acceleration pattern K1 obtained based on the current reduction rate until the end thereof (step S6).
1), it is determined whether or not the flag is set (step S62). If the flag is set, the process immediately proceeds to step S64. If the flag is not set, the control unit 14 performs control according to the acceleration pattern K2 and the reduced acceleration pattern K2 obtained based on the current reduction rate. Is performed until the end (step S63), the process proceeds to step S64.

In step S64, the control unit 14 performs control according to the acceleration pattern K3 and the reduced acceleration pattern K3 obtained based on the current reduction rate until the end thereof.

Thereafter, the control section 14 determines the deceleration pattern G1.
And the reduction deceleration pattern G1 obtained based on the current reduction ratio
The control according to step S6 is performed until it ends (step S6).
5) The control according to the deceleration pattern G2 and the reduction deceleration pattern G2 obtained based on the current reduction ratio is performed until it ends (step S66), and the reduction obtained based on the deceleration pattern G3 and the current reduction ratio is performed. The control according to the deceleration pattern G3 is performed until it ends (step S67),
The closing control in step S4 ends. This time point corresponds to the point H3 in FIG.

Although not shown in the drawing, it is determined in steps S50, S51 and S52 whether or not the open command is input. If the open command is not input,
When the control according to the deceleration patterns G4, G5, G6 is completed, the closing control of step S4 is ended, while when the open command is input, the control according to the deceleration patterns G4, G5, G6 is completed. Later acceleration pattern K1, K2, K
3 and the deceleration patterns G1, G2, G3 may be performed, and when this is completed, the closing control of step S4 may be ended.

According to the present embodiment described above, when the shutoff bar 12 is rotated from the open position P7 to the closed position P1 (normal closing operation), the slow start and deceleration pattern by the acceleration pattern K4. A slow stop by G6 will be held. Further, when the blocking bar 12 is rotated from the closed position P1 to the open position P7 (in the case of a normal opening operation)
Then, the slow start by the acceleration pattern K1 and the slow stop by the deceleration pattern G3 are performed. Therefore, compared with the present embodiment and the conventional breaker, the break bar 1
The burden on the root of 2 is reduced. Moreover, as intermediate speed patterns, speed patterns K2, K3, G1, G
2 and the speed patterns K5, K6, G4 and G5 are adopted, the blocking bar 12 can be opened and closed in a short time.

Further, in the present embodiment, taking into consideration the influence of gravity of the blocking bar 12, the speed of the blocking bar 12 is changed more gently in the acceleration pattern K1 than in the deceleration pattern G3, and the acceleration pattern K2. Is slower than the deceleration pattern G2, the deceleration pattern G6 is slower than the acceleration pattern K4, and the deceleration pattern G5 is slower than the acceleration pattern K5. Therefore, the load on the root of the blocking bar 12 can be further reduced, and the blocking bar can be opened and closed in a shorter time.

Further, in the present embodiment, not only during such a normal opening / closing operation, but also during the normal opening / closing operation not only during the closing command during the opening operation and during the opening command during the closing operation. Since the same control is performed, the load on the root of the blocking bar 12 can be further reduced and the blocking bar can be opened and closed in a shorter time.

As described above, according to the present embodiment, since it is possible to open and close the blocking bar in a short time while reducing the load on the root of the blocking bar 12, the blocking bar 12 is not so strong. Despite using
The blocking bar 12 can be opened and closed in a short time while ensuring the durability of the blocking bar 12. For example, even if the time from time T1 to time T7 and the time from time T11 to time T17 are set to a short time such as about 0.5 seconds, the durability of the blocking bar 12 can be ensured.

By the way, in the example shown in FIG. 3, the speed of the blocking bar 12 changes at a constant acceleration in each of the patterns K1 to K6 and G1 to G7, but as shown in FIG. , G1 to G7 as a whole, the speed of the blocking bar 12 may be changed smoothly. In this case, the load on the root of the blocking bar can be further reduced. In this case, each pattern K1 to K6
If, for example, a function indicating the curve is used as the data indicating G1 to G7, the control unit 14 may perform the same operation as the above-described flowchart. If the calculation speed may decrease at that time, for example, the coordinate values of each point on the curve shown by the solid line, the broken line, and the alternate long and short dash line in FIG. 10 are stored in the memory, and the values are sequentially stored. You may make it read and implement the control as mentioned above.

Although t2≈t5 in the example shown in FIG. 10, the speed of the blocking bar 12 as a whole of the patterns K1 to K6 and G1 to G7 is changed smoothly, and, for example, t2> t5. May be

In the above description, the shut-off bar 12 can be strictly stopped at the open position P7 and the closed position P1 by controlling only the elapsed time. However, in practice, it is difficult to strictly stop the blocking bar 12 at the open position P7 and the closed position P1 by controlling only the elapsed time. Therefore, for example, the blocking bar 12 is opened at a sufficiently low predetermined speed. P7 and the closed position P1 are always reached, and the control unit 14 may control the motor 11 to stop when the detection signals are obtained from the open position detector 15 and the closed position detector 16. preferable.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.

For example, the speed from point A3 to point A5 and the speed from point B3 to point B5 in FIG. 3 may be constant.

Further, in the above-described embodiment, the opening command is received during the normal closing operation and the closing command is received during the normal opening operation. However, either one or the other is not accepted. You may For example, in the case where the closing command is not accepted during the normal opening operation, in the opening control of step S2 in FIG.
The control unit 14 may sequentially perform the control according to the patterns K1 to K3 and G1 to G3 without determining whether or not the close command is input.

Further, in the above-described embodiment, the control unit 14 controls based on the elapsed time, but since the elapsed time and the position of the blocking bar 12 have a corresponding relationship, for example, the blocking bar is A rotary encoder, a potentiometer, or the like may be used as the 12 position detectors, and control may be performed based on the position detection signal.

Furthermore, although the above-described embodiment applies the present invention to a breaker for ETC, the present invention can also be applied to a breaker for other purposes.

[0115]

As described above, according to the present invention,
Even when a blocking bar having a relatively low strength is used, the blocking bar can be opened and closed in a short time while ensuring the durability of the blocking bar.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a usage state of a circuit breaker according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram showing an electrical configuration of one of the circuit breakers shown in FIG.

FIG. 3 is a diagram showing an example of a control pattern by a control unit.

FIG. 4 is a diagram showing the relationship between the positions of the blocking bars and the moving time between them according to the speed pattern shown by the solid line in FIG.

FIG. 5 is a schematic flowchart showing an example of the operation of the control unit.

FIG. 6 is another schematic flowchart showing an example of the operation of the control unit.

FIG. 7 is still another schematic flowchart showing an example of the operation of the control unit.

FIG. 8 is still another schematic flowchart showing an example of the operation of the control unit.

FIG. 9 is still another schematic flowchart showing an example of the operation of the control unit.

FIG. 10 is a diagram showing another example of a control pattern by the control unit.

[Explanation of symbols]

1,1 'circuit breaker 2,2 'Tollgate Island 3 lanes 10 Circuit breaker body 11 electric motor 12 Blocking bar 13 Drive circuit 14 Control unit 15 Open position detector 16 Closed position detector

Continuation of the front page (56) References JP-A-52-152300 (JP, A) JP-A-4-245392 (JP, A) Actual development Sho-59-122698 (JP, U) (58) Fields investigated (Int .Cl. ⁷ , DB name) G08G 1/09 B61L 29/04 E01F 13/00 G07B 15/00

Claims (13)

(57) [Claims] 1. An actuator and, driven by the actuator, rotated about a substantially horizontal axis between a substantially vertical open position that opens a predetermined passage of a vehicle and a substantially horizontal closed position that closes the predetermined passage. A breaking bar, and a control unit that controls the actuator in response to an opening command and a closing command, wherein the control unit controls the breaking bar from the closed position in response to the opening command. When controlling the actuator to rotate to the open position, the first step in which the shut-off bar is relatively gently accelerated immediately after starting to turn from the closed position, and the shut-off bar is in the open position. And a third stage in which the shut-off bar is rotated according to a desired speed pattern after the first stage and before the second stage. Is done And controlling the actuator so that the speed of the blocking bar changes more gently in the first step than in the second step, and the control means responds to the closing command. When the actuator controls the actuator so that the blocking bar rotates from the open position to the closed position, a relatively gentle acceleration is performed immediately after the blocking bar starts rotating from the open position. A fifth step in which the shut-off bar is decelerated relatively slowly just before stopping at the closed position, and a desired speed of the shut-off bar after the fourth step and before the fifth step. Controlling the actuator so that the sixth step of rotating in accordance with the pattern is performed, and that the speed of the blocking bar changes more gently in the fifth step than in the fourth step. Characterized by Cross-sectional machine. 2. The third step comprises a seventh step in which the blocking bar is accelerated relatively rapidly after the first step, and the seventh step.
An eighth step in which the blocking bar is accelerated relatively slowly after the step, a ninth step in which the blocking bar is relatively slowly decelerated after the eighth step, and A second step, a tenth step in which the barrier bar is decelerated relatively rapidly, and a sixth step, the eleventh step, in which the barrier bar is relatively rapidly accelerated after the fourth step. Steps, a twelfth step in which the blocking bar is accelerated relatively slowly after the eleventh step, a thirteenth step in which the blocking bar is decelerated relatively slowly after the twelfth step, and the thirteenth step 14. The circuit breaker according to claim 1, further comprising: a step 14 after which the shut-off bar is decelerated relatively rapidly before the step 5. 3. The control means causes the speed of the shut-off bar to change more gently in the seventh step than in the tenth step, and in the fourteenth step as compared with the eleventh step. The circuit breaker according to claim 2, wherein the actuator is controlled so that the speed of the blocking bar changes gently. 4. The actuator is configured so that the speed of the blocking bar changes at a constant acceleration in each of the first, second, fourth, fifth, seventh to fourteenth steps. 3. The method according to claim 2, wherein
Or the circuit breaker described in 3. 5. The circuit breaker according to claim 2, wherein the control unit controls the actuator so that the speed of the blocking bar changes substantially smoothly. 6. The control means, when the opening command is received while the blocking bar is rotating from the open position to the closed position, stops the blocking bar and then stops the blocking bar. The actuator is controlled so as to rotate from the position to the open position, and at this time, the control means follows the desired speed pattern determined according to the position of the blocking bar when receiving the open command. The actuator is controlled so that the shut-off bar is relatively slowly decelerated immediately before the temporary stop, is relatively slowly accelerated immediately after the temporary stop, and is relatively slowly decelerated immediately before being stopped at the open position. The circuit breaker according to any one of claims 1 to 5, wherein: 7. The control means, when the opening command is received while the blocking bar is rotating from the open position toward the closed position, stops the blocking bar and then stops the blocking bar. When controlling the actuator so as to rotate from the position to the open position, the speed of the blocking bar is gentler immediately before the temporary stop than immediately after the blocking bar starts rotating from the open position. As it changes
7. The actuator is controlled so that the speed of the shut-off bar changes more gently immediately after the shut-down bar than immediately before the shut-off bar stops at the open position. Circuit breaker. 8. The control means, when the closing command is received while the blocking bar is rotating from the closed position toward the open position, stops the blocking bar and then stops the blocking bar. The actuator is controlled so as to rotate from the position to the closed position, and at this time, the control unit follows the desired speed pattern determined according to the position of the blocking bar when the closing command is received. The actuator is controlled so that the shut-off bar is relatively slowly decelerated immediately before the temporary stop, is relatively gently accelerated immediately after the temporary stop, and is relatively slowly decelerated immediately before being stopped at the closed position. The circuit breaker according to any one of claims 1 to 7, wherein: 9. The control means temporarily stops the shut-off bar after receiving the close command while the shut-off bar is rotating from the closed position toward the open position. When controlling the actuator so as to rotate from the position to the closed position, the speed of the blocking bar is gentler immediately after the blocking bar starts rotating from the closed position than immediately before the blocking. In addition, the actuator is controlled so that the speed of the blocking bar changes more gently immediately before the blocking bar stops at the closed position than immediately after the blocking stops. The circuit breaker according to claim 8. 10. The control means is any one of the fourth stage, the eleventh stage, and the twelfth stage, in which the blocking bar is being rotated from the open position to the closed position. When the opening command is received in the stage, the actuator controls the actuator to rotate from the stop position to the opening position after the blocking bar once stops, and at this time, the control means outputs the opening command. According to a desired speed pattern determined according to the position of the blocking bar when it is received, the blocking bar is decelerated relatively slowly immediately before the temporary stop and relatively slowly accelerated immediately after the temporary stop. The circuit breaker according to any one of claims 2 to 5, wherein the actuator is controlled so that the actuator is decelerated relatively slowly just before stopping at the position. 11. The control means, when the opening command is received at any one of the fourth step, the eleventh step and the twelfth step, the shutoff bar is provided immediately before the temporary stop. The speed of the shut-off bar changes more slowly than immediately after the rotation of the shut-off bar starts from the open position, and the shut-off bar is shut off immediately after the shut-off bar immediately before the shut-off bar is stopped at the open position. 11. The circuit breaker according to claim 10, wherein the actuator is controlled so that the speed of the bar changes slowly. 12. The control means is any one of the first stage, the seventh stage and the eighth stage, wherein the shut-off bar is in the process of rotating from the closed position to the open position. When the closing command is received in step, the actuator controls the actuator so that the blocking bar temporarily stops and then rotates from the stop position to the closing position, and at this time, the control unit issues the closing command. According to a desired speed pattern determined according to the position of the blocking bar when it is received, the blocking bar is decelerated relatively slowly immediately before the temporary stop and relatively slowly accelerated immediately after the temporary stop. The circuit breaker according to any one of claims 2 to 5, 10 and 11, wherein the actuator is controlled such that the actuator is decelerated relatively slowly immediately before the vehicle stops at the position. 13. The control means, when the closing command is received at any one of the first step, the seventh step, and the eighth step, the blocking bar rotates from the closed position. Immediately after the start, the speed of the shutoff bar changes more slowly than immediately before the stop, and immediately before the stop at the closed position, the speed of the shutoff bar is faster than immediately after the stop. 13. The circuit breaker according to claim 12, wherein the actuator is controlled so as to change gradually.