JPH0751971Y2 - Arm breaker - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cross-cutting machine for temporarily closing a crossing by tilting a cross-cutting rod substantially horizontally in a direction crossing the crossing, and particularly to a driver of a large vehicle. The present invention relates to a cross-section breaker that reliably informs that a breaker is in operation and can stop the entry of a large vehicle into a railroad crossing.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 7 and 8, a cutting machine of this type is mounted on a foundation 1 constructed at a predetermined position on the side of a railroad crossing and fixed on the foundation 1. On the hollow stand 2 which is
It has a fixed structure. Breaker body 3
Is attached to the holder 5 on the side surface by the cutting rod 6 and the balance weight 7.
Are mounted so as to extend in a balanced manner on both sides, and include a bearing, a driving machine, and the like for supporting and driving the cutting rod 6 through the holder 5 so that it can be tilted up and down. In addition, an external cable 8 for controlling or driving a driving machine or the like in the breaker main body 3 passes from the foundation 1 through the stand 2 to the breaker main body 3.

Only one of the shutoff rods 6 is provided, and the height of the shutoff rod 6 when tilted to the horizontal position is usually set to about 0.8 m on the road surface.

[0004]

In the above-mentioned conventional interrupter, the interrupter can be seen well by a pedestrian or a driver of an ordinary vehicle with a low vehicle height, and the intrusion into these railroad crossings can be reliably stopped. It was possible. However, if the driver of a large vehicle such as a truck does not see it well and it is difficult to hear the warning sound indicating the operation of the circuit breaker due to ambient noise, etc., it means that the circuit breaker is operating. There was a risk that a large vehicle could push the vehicle along the rail and go into the railroad crossing without the driver's knowledge.

Therefore, it cannot be said that there is a risk of troubles that hinder the progress of trains and accidents that collide with trains when such adverse conditions overlap. In addition, if a truck intrudes forcibly, even if a collision accident does not occur at that time, there is a problem that the cutting rod will break and it will be costly and time-consuming to restore, and after that the railroad crossing will be closed and unsafe. There was a problem of being in a state.

[0006] Therefore, the applicant was conceived to provide a disconnecting rod at a high position where a driver such as a truck can easily see it, and proposed a disconnecting device having two interrupter main bodies at a high position and a normal low position. is doing. However, with this configuration, although the above-mentioned problems are solved, various points to be improved occur.

That is, the work for adjusting the position of the balance weight, which is necessary when the breaker is installed, must be carried out at two places, and at one place the work is done at a high place. The workability such as exchanging the cutoff rod is deteriorated. In addition, since two breakers are required, the cost will increase significantly. Further, since the cutoff rods are configured to operate independently, the movement of the two cutoff rods may be uneven and the appearance may be poor, and the cutoff rods may come into contact with each other.

The present invention has been made in view of the above conventional circumstances, and reliably informs the driver of a large vehicle that the circuit breaker is in operation, so that the entry of a large vehicle into a railroad crossing can be ensured. An object of the present invention is to provide a arm-type breaker that can be stopped, balance adjustment work is easy, cost is not increased, and there is no contact between cutting rods or uneven movement.

[0009]

[Means for Solving the Problems] The gist of the present invention for achieving the above-mentioned object is to install the armrest type cutting rod substantially horizontally in the direction crossing the crossroad, which is installed beside the crossroad. , A cross-type cross-section for temporarily closing the crossing path, wherein the cut-off rod is a normal-position cut-off rod (36) that falls to a normal low position to effectively stop the passage of a passerby or a normal vehicle, A cutoff having a high-position cutoff rod (16) that falls to a high position that is easy for a driver of a large vehicle such as a truck to see, and a support drive shaft (33a) that supports the normal-position cutoff rod (36) so as to be able to tilt Machine body (3
3), a bearing unit (13) that supports the high-position cutoff rod (16) so as to be able to move up and down, and a raising / lowering operation of the high-position cutoff rod (16) causes the normal position cutoff rod (36) to rise and fall. The support drive shaft (33) of the normal position cutoff rod (36) of the cutoff machine body (33) is linked to the operation.
Rotation transmitting means (41, 51) for transmitting (a) the rotation (13a) to the support shaft of the high position cutoff rod (16) in the bearing unit (13), the normal position cutoff rod (36) and the high position. An arm-type interrupter characterized by comprising a balance weight (37, 37) attached to the base end side of the normal position interrupter rod (36) in order to cancel the weight of the interrupter rod (16).

[0010]

According to the interrupter of the present invention, the interrupter rods (36, 16) can be turned up and down like the conventional one to temporarily close the crossing passage when a train passes, but as an interrupter rod, Normal position cutoff rod (36) that falls to the normal low position
And a high-position cutoff rod (16) that falls to a high position where it can be easily seen by a driver of a large vehicle, etc., and these cutoff rods (36, 16) are lined up in parallel to their respective heights during operation. Will be crossed.

For this reason, the normal position shutoff rod (36) is mainly used.
By using the high position cutoff rod (16), the driver of the large vehicle can be surely notified that the circuit breaker is in operation, while the intruder and the ordinary vehicle are surely prevented from being intruded. Intrusion can be surely blocked.

Moreover, the balance weights (37, 3) attached to the normal position cutoff rod (36) at one position on the base end side thereof.
7), together with the weight of the normal position cutoff rod (36), through the rotation transmission means (41, 51), the high position cutoff rod (1).
Since the weight of 6) is also canceled out, the work for adjusting the mounting position of the balance weights (37, 37) is performed only at one place in a low place.

Further, the high position cutoff rod (16) is a main body (3) of the breaker to which the normal position cutoff rod (36) is attached.
It is driven by the driving force of 3) via the rotation transmission means (41, 51) and is tilted up and down in synchronization with the normal position cutoff rod (36). Therefore, compared to the case where the main body of the interrupter is provided for each interrupting rod, the cost of parts can be reduced, the movements of the interrupting rods are aligned, and the possibility of contact is eliminated.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIGS.
An example will be described. As shown in FIG. 1, this breaker includes a hollow stand 12 fixed to a foundation 11 and a bearing unit 1 attached to an upper end of the stand 12.
3 and a breaker main body 33 attached to the side surface of the stand 12 via a bracket 21. As the cutoff rod, a normal position cutoff rod 36 supported and driven by the breaker main body 33 and a bearing unit 13 are supported. The high-position cutoff rod 16 and the cutoff rods 36, 16
It is provided with a rotation transmission means 41 for interlocking.

The stand 12 is formed by forming rectangular flanges 12a and 12b on the upper and lower sides of a cylindrical body, and is erected on the foundation 11 by the lower flange 12b. A bracket 21 is provided on a lower side surface of the stand 12.
Bracket mounting seats 12c, 12c for joining the brackets are formed vertically side by side.
A cylindrical cable passing portion 12d having an internal hole penetrating into the stand 12 is provided between 2c and 12c. An opening or hole is formed in the central portion of the flange portion 12b of the stand 12 for passing an external cable 38 for controlling or driving a driving machine in the breaker main body 33.

The bracket 21 includes two plate members 22,
23 are joined at a right angle, reinforced by a rim member 24, and fixed to each other. The bracket 21 is a plate-shaped member 22.
The bracket mounting seats 12c, 12c of the stand 12
Is fixed to the lower side surface of the stand 12 in a posture in which the plate-like member 23 is horizontally extended by a bolt 25 penetrating the plate-like member 22 and screwed into the bracket mounting seats 12c, 12c. In addition, this bracket 21
The plate-shaped members 22 and 23 are formed with openings or holes through which the external cable 38 for controlling or driving the driving machine or the like in the breaker main body 33 is passed.

The breaker main body 33 is mounted on a side holder 35 so that a normal position cutoff rod 36 and balance weights 37, 37 extend in a balanced manner on both sides, and a support drive shaft to which the holder 35 is fixed. A bearing for supporting and driving the normal position cutoff rod 36 so as to be able to move up and down via the 33a, a driving machine, etc. are built in. The breaker main body 33 is placed on the plate-shaped member 23 of the bracket 21 fixed to the lower side surface of the stand 12, and the plate-shaped member 23
It is fixed on the plate-like member 23 by a bolt 39 that penetrates through the screw and is screwed into the outer frame of the interrupter body 33.

The bearing unit 13 includes a high-position cutoff rod 16
The holder 15 has a bearing for pivotally supporting the fixed support shaft 13a, and is fixed on the flange portion 12a by a bolt 19 which penetrates the flange portion 12a and is screwed into the outer frame of the bearing unit 13. ing.

The rotation transmitting means 41 is a high-position cutoff rod 16
The rotation of the support drive shaft 33a in the main body 33 of the interrupting machine is transmitted to the support shaft 13a in the bearing unit 13 so that the raising and lowering movement of the bearing is linked to the raising and lowering movement of the normal position cutting rod 36. It comprises a sprocket 42 fixed to the shaft 33a, a sprocket 43 fixed to the support shaft 13a, and a toothed belt 44 wound around these sprockets 42, 43. The toothed belt 4
4 is attached to each sprocket 42, 43 with the phase adjusted so that the normal position cutoff rod 36 and the high position cutoff rod 16 always operate in parallel.

The length of the stand 12 (height of the flange 12a) and the bracket mounting seat 12c,
When the cutting rods 16 and 36 attached to the bearing unit 13 or the cutting machine body 33 are laid down substantially horizontally, the cutting rods 16 and 36 are formed at positions (height of the plate member 23) and the like. Lined up and down in the same plane, and the normal position cutoff rod 36 is located at a normal low position (about 0.8 m above the ground) that effectively stops the passage of passersby or ordinary vehicles, and cuts off. The rod 16 is set so as to be located at a high position (a height of about 2.0 m from the ground) that is easily seen by a driver of a large vehicle such as a truck.

In this case, the balance weight 37 balances with one shutoff rod, but by providing two balance weights at the same position, the balance weight 37 is supported by the rotating means 44 together with the weight of the shutoff rod 36 at the normal position. The weight of the high-position cutoff rod 16 transmitted to the drive shaft 33a is also canceled. In this case, two pieces are provided so that the same weight as the conventional balance weight can be used as it is, but it goes without saying that the balance weights 37, 37 may be formed as an integral body.

Also, the external cable 38 of the breaker 33
Is wired through the inside of the foundation 11 or the inside of the stand 12, but is connected to the breaker 33 through the above-described cable passage portion 12d and the openings or holes of the plate-shaped members 22.23.

Next, the operation of the first embodiment will be described.
According to the above interrupter, by operating the interrupter main body 33, the interrupter rods 36 and 16 can be tilted in the direction crossing the crossing to temporarily close the crossing when the train passes. As the shutoff rod, a normal position shutoff rod 36 that falls down to a normal low position and a high position shutoff rod 16 that falls down to a high position that is easily seen by a driver of a large vehicle are provided.
During operation, the cutoff rods 36 and 16 are arranged in parallel to their respective heights and cross the crossing path.

For this reason, as shown in FIG. 6, the normal position cutoff rod 36 is used to reliably prevent entry of passers-by and ordinary vehicles as before, while the high position cutoff rod 16 is used to drive a driver of a large vehicle. It is possible to reliably inform that the circuit breaker is in operation and to reliably prevent a large vehicle from entering.

Moreover, with the balance weights 37, 37 attached at one place on the base end side of the normal position cutoff rod 36,
Since the weight of the normal position cutoff rod 36 and the weight of the high position cutoff rod 16 are canceled by the rotation transmission means, the position for adjusting the attachment position of the balance weight is low (the cutoff device main body 33 is There is only one place in the installed position).

Further, the high position cutoff rod 16 is driven via the rotation transmission means 44 by the driving force of the main body 33 of the interrupter to which the normal position cutoff rod 36 is attached, and rises and falls in synchronization with the normal position cutoff rod. . Therefore, the cost of parts can be reduced as compared with the case where the main body of the breaking machine is provided for each of the breaking rods, the movements of the breaking rods 36, 16 are aligned, and the possibility of contact is eliminated.

Therefore, with the above-mentioned interrupter, it is possible to reliably prevent a large vehicle from entering the railroad crossing, prevent collision accidents and breakage problems of the interrupter rod with high reliability, and to install and repair the interrupter. Cost and effort are kept low,
Moreover, the appearance can be kept good.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those of the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. The breaker of the second embodiment is characterized by the structure of the rotation transmitting means. That is, the rotation transmission means 51 of the second embodiment.
As shown in FIGS. 3 and 4, the link mounting body 52 fixed to the support drive shaft 33a, the link mounting body 53 fixed to the support shaft 13a, and both ends of the link mounting bodies 52, 53 are rotatable. And a link 54 connected to.

The link mounting bodies 52 and 53 are disc-shaped, and as shown in FIG. 5, pin-shaped projections 52a and 52b or 53a and 53b for mounting the link 54 on the side surface.
Are formed. The pin-shaped projections 52a or 53a of the link attachment bodies 52, 53 are respectively provided with the cut-off rods 36, 1
When 6 tilts up and down in a range from a horizontal tilt angle to the right to a vertical angle extending upward, it swings within a range on the left side of a straight line connecting the center of the support shaft 13a and the center of the support drive shaft 33a. The cutting rods 36 and 16 are formed at the same position. Further, the pin-shaped projections 52b or 53b have the cut-off rods 36, 16 attached to the holders 35, 15
When the cutoff rods 36, 16 are tilted to the left, they are oscillated within a range on the right side of a straight line connecting the center of the support shaft 13a and the center of the support drive shaft 33a. Is formed in position.

The link 54 has a pin-shaped projection 52a,
52b or 53a, 53b is formed with a ring-shaped portion that is rotatably fitted, and a male rod is formed at the base end of the link rods 55, 55, and at both ends of these link rods 55, 55.
And a turnbuckle 56 in which a female screw hole that can be screwed into the male screw is formed, and the base ends of the link rods 55, 55 are arranged so as to face each other.
By connecting both ends of the turnbuckle 56 to the male screws of 5, 55, respectively, these link rod bodies 55, 5
5 are connected by a turnbuckle 56 so that the distance can be adjusted.

In this case, in the link 54, the ring-shaped portions of the respective link rod bodies 55, 55 are respectively pin-shaped projections 52.
a and 53a are fitted and attached, and the length thereof is set equal to the distance between the center of the support shaft 13a and the center of the support drive shaft 33a, and as a result, a parallel link is formed. That is, the link mounting plates 52, 53 and the link 54
As a result, the respective cutoff rods 36, 16 are synchronized and interlocked, and the normal position cutoff rod 36 and the high position cutoff rod 16 are always maintained in parallel.

Next, the operation of the second embodiment will be described. Even in the interrupter of the second embodiment, similarly to the interrupter of the first embodiment, the interrupter main body 33 is actuated to synchronously bring down the interrupter rods 36 and 16 to bring down the traverse path. Can be closed reliably and
Although the cost and labor required for installing and repairing the interrupter can be kept low, in this embodiment, the interlocking operation of the interrupter rods 36, 16 is more reliable. That is, when the rotation transmitting means is constituted by the toothed belt as in the first embodiment, it cannot be said that there is a possibility that the phases of the cutoff rods 36, 16 may be shifted due to the elongation of the toothed belt and the tooth jump. However, in the case of the second embodiment, such fear is extremely small.

Needless to say, the mode of the rotation transmitting means of the present invention is not limited to the above two examples, and may be constituted by, for example, a chain or a gear.

[0034]

According to the circuit breaker of the present invention, the normal position cutoff rod 36 is used to reliably prevent the intrusion of passers-by and ordinary vehicles as before, while the high position cutoff rod 16 is used for large vehicles. The driver can be surely notified that the circuit breaker is operating, and the intrusion of a large vehicle can be reliably prevented.

Moreover, the work for adjusting the mounting position of the balance weight is performed only at one place in a low place, and the cost of parts can be reduced as compared with the case where the main body of the interrupter is provided for each interrupting rod. , The movement of each shutoff rod is uniform and there is no possibility of contact.

Therefore, it is possible to reliably prevent a large-sized vehicle from entering the railroad crossing, to reliably prevent a collision accident and a breakage problem of the blocking rod, and to keep the cost and the labor required for installing and repairing the blocking machine low. In addition, the appearance can be kept good. In addition, even if one of the blocking rods is damaged due to the vehicle being caught or the like, even if one of the blocking rods is driven by the support drive shaft, even in an emergency, one of the blocking rods can be driven. It is likely to secure the movement and is safe.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5 is a front view showing a rotation transmitting means in a second embodiment of the present invention.

FIG. 6 is a side view showing the operation of the embodiment of the present invention.

FIG. 7 is an exploded perspective view showing a conventional example.

FIG. 8 is a perspective view showing a conventional example.

[Explanation of symbols]

 11 ... Foundation 12 ... Stand 13 ... Bearing unit 13a ... Support shaft 16 ... High-position cutoff rod 33 ... Breaker body 33a ... Support drive shaft 36 ... Normal position cutoff rod 41, 51 ... Rotation transmission means

Claims (1)

[Scope of utility model registration request] Claims: 1. A arm type breaker which is installed beside a crossing, and in which a crossing type crossing rod is tilted substantially horizontally in the direction crossing the crossing to temporarily close the crossing. As, has a normal position cutoff rod that falls to a normal low position to effectively stop the passage of passersby or ordinary vehicles, and a high position cutoff rod that falls to a high position that is easy to see for a driver of a large vehicle such as a truck, A cutting machine main body having a support drive shaft that supports the normal position cutoff rod so that the normal position cutoff rod can be raised and lowered, a bearing unit that supports the high position cutoff rod so that the normal position cutoff rod can be raised and lowered, and the raising and lowering operation of the high position cutoff rod is the normal movement. Rotation transmission means for transmitting the rotation of the support drive shaft of the normal position cutting rod in the main body of the cutting machine to the support shaft of the high position cutting rod in the bearing unit so as to interlock with the raising / lowering operation of the position cutting rod, A balance weight attached to the base end side of the normal position cutoff rod in order to cancel the weights of the normal position cutoff rod and the high position cutoff rod.