JPS6021907B2 - Passage blocking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a passage blocking device, and more particularly to a device for temporarily blocking a passage mainly intended for automobiles.

Broadly speaking, among the passages that require this type of temporary closure, the most problematic passages include railroad crossings that intersect with railway tracks.

The automatic level crossing blocking devices currently in use are already designed to be passive and self-defensive, and actively prevent cars from accidentally driving into the crossing while it is closed. On the one hand, it serves only as a kind of train approach indicator. In other words, bamboo material is generally used for the cutoff arm, and when a car rushes into the cutoff arm, the cutoff arm breaks and does not cause any damage to the main body of the device. Similarly, the structure is such that this blocking rope comes off when a car rushes into the area. Accidents in which a car crashes into a closed level crossing barrier are often caused by slippage due to ice, rain, or other changes in the road surface, or insufficient braking due to a delay in confirmation.From the train driver's perspective, it is always a worry to pass through a level crossing. For this reason, it is desirable to add specialized equipment that can actively prevent cars from crashing into the area. In addition, other applicable passageways include, for example, the management of entrances and exits by temporarily blocking the entrances and exits of parking lots, and crime prevention and security such as blocking entrances and exits at night or in emergencies at important buildings, but these are also mentioned above. The former method has a weak blocking force as mentioned above, and the latter has a transverse beam structure supported at several points, making it larger. However, there are disadvantages in that a relatively large area must be secured for installation in a passageway, the structure is complicated, and burying is difficult.

In view of these conventional inconveniences, the present invention is designed so that the cutoff rope placed in the direction across the aisle is normally stored in a storage groove formed on the road surface, and when cut off, it is brought close to the wheel bumper position. The cut-off rope is tensioned with a predetermined tension at a height position to actively prevent the wheels from rushing into the cut-off rope, and at least one of a set of stands that holds the cut-off rope tensioned during cut-off. One side is automatically raised and lowered only in the direction other than the prohibited side, allowing wheels to pass only in the same direction.

Examples of the passage blocking device according to the present invention will be described below.
A detailed description will be given with reference to the accompanying drawings.

Figures 1 to 6 show an embodiment in which the present invention is applied to a railroad crossing, etc., and Figures 1 and 2 show the installation state when it is installed in conjunction with a currently used arm-type level crossing barrier. Figures a to c show its operation and working state, Figures 4 a to c show details of the device configuration, Figure 5 shows the stored state of the cutoff rope on the passage surface, and Figures 6 a to c Each figure shows the operating status of the main stand. First of all
In figures a, b, and c, A-1 and A-2 are a set of current crossbar-type level crossing barriers, and B-1, B-2, and B-3 are the devices of this embodiment. Arm tree type level crossing barrier A
-1, shows the main stand and sub-stand attached to the front side of A-2, and the tension rope tensioned between them.
Also, C-1 and C-2 are a pair of track rails, D-1 and D-
2, d-1, and d-2 represent a road, a storage groove formed on the road surface to receive the tension rope B-3, and a stop line 'center line' spread on the road surface, and E represents a vehicle slope. ing.

Also, Fig. 4 a, b. In c, the main stand B-1 is
It has a main body support and a rotating arm 2 that is pivoted to the support 1 with a pivot 3, and the rotating arm 2 has a built-in buffer mechanism 4.
A sheep 5, which is always pressed outward by a shaft, is equipped with iron so that it can be rotated freely. It is rotatable so that it can be held in the storage position shown by the chain line and the cutoff position shown by the solid line. The sub stand B-2 also has a pivot 11 on the base board 9.
' and is always held in the upright position by a spring 12;
It has a swinging arm 13 which is pivotally supported by the support 1.
0 can be lowered only toward the prohibited side with respect to the base board 9 against the pulling force of a spring 12 around a pivot 11.

However, these main stand B-1 and sub-stand B
-2 is fixedly installed on the side that crosses the road so that if traffic is on the left side of the road D-1, the main stand B-1 is on the left side in the direction of travel. Between the stands, one end 15a is attached to the base end of the upper surface of the rotating arm 2 on the main stand B-1 side, and the other end 15b is attached to the sub-stand after passing through the upper surface of the arm, the groove 5a of the sheave 5, and the lower surface of the arm. A cutoff rope 15 attached to the tip pin 13a of the swing arm 13 is stretched on the side of the stand B-2.

Furthermore, the cutoff rope 15 is set to be located higher (than the bumper position of the car bush E) on the main stand B-1 side, and lower (than the bumper position) on the secondary stand B-2 side, so that it is not conspicuous around the longitudinal direction. It is covered with vinyl tubes 15c colored alternately yellow and black to allow the main stand B-1 side to have a curved guide portion la on the inner surface facing the direction of entry of the support column 1.
It has been established. In this), the buffer mechanism 4 is as follows:
A laminate of rubber plates or a spring as a buffer member,
Alternatively, a hydraulic cylinder or the like can be used, and the escape of the vehicle neck E can be sufficiently buffered and stopped, and the storage groove D-2 can be easily formed by embedding an angle member.

Therefore, according to the configurations of the embodiments in FIGS. 1 to 6,
During non-blocking, the rotating arm 2 of the main stand B-1 is held at the chain line position, and the blocking rope 15 is released from tension and hangs down and stored in the storage groove D-2 of the road D-1 due to its own weight. At the same time, the swing arm 10 of the substand B-2 is also held at the chain line position by its own weight, and in this state, the wheels E can easily step over the storage groove D-2.

Next, when the level crossing barriers A-1 and A-2 are activated due to the approach of a train, the drive motor 6 is activated after a certain period of time, and the rotating arm 2 is moved from the chain line position to the solid line position on the main stand B-1 side. Rotate it.

With this spreading, the cutoff rope 15 is moved to the storage groove D-2.
At the same time, the swing arm 13 of the secondary stand B-2 is also swung from the chain line position to the position shown by the solid line, and finally the cutoff rope 1
5 is the road D-1 in front of the level crossing barriers A-1 and A-2.
is maintained in a state that blocks the movement of wheel E. In this blocking state, when the car bran B runs away and rushes into the vehicle as shown in FIG. compresses the buffer mechanism 4 via the sheave 5 to buffer this tensile force, absorbs the rush energy of the wheel E by the amount of work, and forcibly prevents the vehicle from entering the level crossing, and at this time, If there is a chariot coming out from inside the railroad crossing, the prop 10 on the secondary stand B-2 side can be lowered only to the prohibited side, so you can easily step over the blocking rope 15 and escape, and after escaping, the spring 12 will return immediately.

In this case, the blocking rope 15 is set high on the left side (in the direction of movement of the car) and low on the right side, so that the blocking rope 15 is pulled downward against the rushing car. This generates a force that prevents the vehicle from advancing further, and this action also makes it easier for the escape vehicle to step over the blocking rope 15. Furthermore, the guide portion la formed on the main pillar 1 ensures smooth expansion of the cutoff rope 15 due to the compression of the buffer mechanism 4. Subsequently, after the train passes through the level crossing, the level crossing barriers A-1 and A-2 return, and the rotating arm 2 is also returned to the above-mentioned non-blocking state by the drive motor 6 for the next blocking operation. Be prepared.

Since the embodiments in FIGS. 1 to 6 are applied to a railroad crossing, it is assumed that a vehicle head may have already entered the railroad crossing at the time of the cut-off operation, and the secondary stand B-
The second side can be raised and lowered in the direction of escape, which is the no-entry side, but in this regard, the main stand B-1 side may also be raised and lowered in the same direction, and in cases where it is not possible to regulate the traffic classification, etc. On the contrary, only the main stand B-1 side may be able to be raised and lowered in the same direction.

Furthermore, when this embodiment device is applied to other roads and passages that do not have special conditions, such as railroad crossings, it may not be necessary to employ such means that can raise and lower in only one direction. Further, for the same reason, there may be a case where there is no need for a difference in the set height between both ends of the cutoff rope 15 in the tensioned state. Next, FIG. 7 and FIGS. 8a and 8b show another embodiment in which the vehicle is installed on a passageway or road for the purpose of controlling the entrance and exit of car bran and for crime prevention and security.

In FIG. 7 and FIGS. 8a and 8b, the same reference numerals as in FIGS. 1 to 6 represent the same or corresponding parts, and in the embodiment shown in FIGS. As described above, the means for raising and lowering the main and regular stands to the prohibited side and the height difference between the cutoff ropes are omitted, and instead, the cutoff rope 15 is replaced by parallel ropes 16 and 17, one of which is made similar to the previous example. , the other is pulled out on the main stand B-1 side through the auxiliary guide part 18 integrated with the rotating arm 2, and is held at two points on the swinging arm 13 on the sub-stand B-2 side, and both stands Indicator lights 19, 19 are arranged on the top to indicate the operation status,
This can produce the same actions and effects as the previous example.

As described in detail above, according to the present invention, as a blocking device installed on a road or passageway, it is possible to actively prevent vehicles from escaping at the time of blocking. Since the stress applied to the rope is absorbed by the buffer mechanism, it is possible to soften the impact when the rush wheel is held back, and also to prevent the breaking rope from breaking due to overload, and to prevent the breakage rope from breaking due to overload. However, restoration is easy and does not impede traffic, and since the drive motor only operates the rotating arm, only a small horsepower is needed, making it extremely effective despite its simple configuration. It is something like that.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a perspective view and a plan view of an embodiment of the passage blocking device according to the present invention applied to a railroad crossing,
Figures 3a and b are explanatory diagrams of the same operation as above, and Figure 4c is an explanatory diagram of the operating state, Figures 4a, b, and c are views showing the plane, front, and side of the secondary stand of the device, and Figure 5 is an illustration of the cutoff rope. 6a, b, and c are partially cutaway plane, front, and side views of the main stand in the operating state. A perspective view showing another embodiment, and FIGS. 8a and 8b are front views of the same device. A-1, A-2... Level crossing barrier, B-1, B-2,
B-3...Main stand, secondary stand, and cutoff of passageway blocking device. loop, C-1, C-2...orbital rail, D-1
, D-2...road, storage ditch, E.・．． ．．・．． Rush car chrysanthemum, 1...Main stand side support, 2...
...Rotating arm, 4...Buffer mechanism, 5...
Sheave, 6... Drive motor, 7... Reduction gear train, 8... Sector gear, 9...
・Base board, 10... Sub-stand side support, 1
2... Spring, 13... Swinging arm, 15, 16, 17... Cutting off rope. Figure 2* Europe* Figure 3 Figure 5/6* Figure*

Claims (1)

[Claims] 1. A rotary arm that is swingably supported on the upper part of the support column and rotated by a drive motor to a storage or cutoff position, and a buffer mechanism built into the rotary arm. , a main stand installed on one side of the target passageway, a swinging arm swingably supported on the upper part of the support, and installed opposite to the main stand on the other side of the passageway. One end is attached to the rotating arm and the other end is attached to the swinging arm via the buffer mechanism, and when not shutting off, it is stored in a storage groove formed across the passage surface, and the shutting A passageway blocking device characterized by comprising a blocking rope that is tensioned together with a swinging arm at a position above a passageway surface by the rotation of the swinging arm. 2. A rotary arm that is swingably supported on the upper part of the column and rotated by a drive motor to the retracted or shutoff position, and a buffer mechanism built into this rotary arm, so that one side of the target passageway is provided. a main stand installed in the main stand; a substand having a swinging arm swingably supported on the upper part of the support and installed facing the main stand on the other side of the passage; One end is attached to the rotating arm and the other end is attached to the swinging arm via a buffer mechanism, and when not shutting off, it is stored in a storage groove formed across the passage surface, and when shutting off, the rotating arm is not rotated. At least one of the blocking rope, which is tensioned to a position above the passage surface together with the swinging arm by the movement, and each of the pillars of the main or sub-stand faces the entry-prohibited side, and is normally maintained in an upright position. 1. A passage blocking device characterized by comprising means for raising and lowering it freely. 3. The passage blocking device according to claim 2, characterized in that the blocking rope is set slightly higher on the main stand side and slightly lower on the auxiliary stand side.