JPH0820902A - Girder track branching device and joint device therefor - Google Patents

Abstract

PURPOSE:To simplify construction by grasping and releasing auxiliary girders having length equivalent to the difference in length between a main line and a branch line with one joint device provided to main movable girders, and turning the main movable girders on the side of grasping after the auxiliary girders is grasped with the other joint device. CONSTITUTION:Main movable girders 1, 2, 3 and 4 are connected to fixed girders of parallel double tracks K1 and K2, and they are rotatable with supporting points P1, P2, P3 and P4 as the centers. After that, a first auxiliary girder is provided between the girders 1 and 2, and a second auxiliary girder is provided between the girders 3 and 4. In that case each length of the girders 5 and 6 is equivalent to the difference between the length of a main line and that of a branch line. In the case the girder 1 is connected with the girder 4, the girder 5, the girder 5 is carried with the girder 2 through a joint device, and the girder 6 is carried with the girder 4. In addition, the girder 2 is connected to the girder 3, the girder 5 is carried with the girder 2, and the girder 6 is carried with the girder 3. According to the constitution, the auxiliary girders can be miniaturized, an automatic controlling circuit is simply made there is no rotary auxiliary girder, and manufacture, installation, maintenance, etc., can be easily executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device applied to, for example, a girder-type track represented by a straddle-type monorail, and a joining device suitable for being mounted on the branching device.

[0002]

2. Description of the Related Art In the case of forming a branch in the shape of a cross suspension, cross rolling is performed by using four rolling devices which extend in the extension direction and are rotatably installed with respect to four fixed girders. By doing so, a gap having a length corresponding to the difference between the straight track and the cross track is generated between the movable branch girders that were exactly butted against each other during the straight track.

For this reason, conventionally, a swivel type auxiliary girder for replenishing the clearance is provided at the center of the intersection of the seesaw cross type branch. For example, in Japanese Patent Application Laid-Open No. 61-242202, the X-shaped crossing position of each pair of swing branch orbits that are swingably provided so as to form an X-shaped branch orbit between the double-tracks. It has been proposed to provide an auxiliary track that compensates only for the shortage of the length when the X-shaped track is formed and converted.

In such a configuration, since the straight portion of the double-track is a butt of the branch girders, the interval dimension without the signal line laying between the butt becomes long, and the signal is transmitted and received for train operation. There is a dropout, and because the length of the girder length on the auxiliary track side is only due to the shortage at the time of conversion, the transmission level becomes unstable even if the signal line can be laid. If there is a problem, Japanese Patent Laid-Open No. 4-2
In the 02901 publication, the branch girder butting portion of the double track is
A fixed girder with the shortest length that allows the laying of the signal line length without signal loss is provided, and the shortage of conversion is added to the fixed girder length at the crossing position by the combination of four single-sided branch devices. It has been proposed to provide a rotating girder.

[0005]

After all, these configurations are
It is basically based on the provision of a relatively short auxiliary track that can be rotated at the crossing position, and although it has the advantage that the total length of the branch track can be shortened compared to other conventional examples, in addition to the fixing mechanism part, auxiliary Large turning power is required in the track part,
Moreover, since a reversible movement with high frequency is forced in the swiveling portion, a considerable structural strength must be provided. Moreover, since these auxiliary girders are located in the central region of the branch crossing part, if maintenance is required during use of the track, the work will be dangerous and the construction of the auxiliary girders will be complicated. Moreover, the work itself is not easy.

Therefore, the present invention is to completely solve the above problems. That is, it is an object of the present invention to provide a branching device having a simple structure and easy to maintain without a pivoting auxiliary girder requiring a driving force at the center of the X-shaped branching crossing portion.

[0007]

In order to solve the problem, according to the present invention, a branching device is provided with a length corresponding to the difference between the main line length of the device and the branch line length at each main line branching portion of the double track. The auxiliary girder has a main movable girder disposed on each side of the auxiliary girder, and a joining device for joining the main movable girder and the auxiliary girder. The joining device is attached to each of the main movable girders. At the time of branch switching, one of the joining devices that captures the auxiliary girder is released, the other joining device captures the auxiliary girder, and the main movable girder on the side that captures the auxiliary girder rotates and branches. Open the line.

In this branching device, the joining device attached to the main movable girder to capture the auxiliary girder rotatably connects the two gripping members that can be opened and closed, the centering member, and the two gripping members. It is composed of a connecting member and a drive device for moving the connecting member in position.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described based on the embodiments shown in the drawings.

In FIG. 1, which shows a state in which a Cesars cross type branching device is arranged in a section of a total length L _{1 in} a double-track girder track,
The multi-track orbits K ₁ and K ₂ are arranged in parallel with each other, and each main movable girder 1, 2, 3 and 4 connected to each fixed girder.
Rotate about the fulcrums P ₁ , P ₂ , P ₃ and P ₄ , respectively. Main movable girders 1, 2 and 3,
A first auxiliary girder 5 and a second auxiliary girder 6 are respectively arranged between the four. When connecting the main movable girders 1 and 4 as shown in FIG. 2, these auxiliary girders carry the first auxiliary girder 5 with the main movable girder 1 and the second auxiliary girder 6 with the main movable girder 4. Is being carried around. When the main movable girders 2 and 3 are connected as shown in FIG. 3, the first auxiliary girder 5 is carried by the main movable girder 2 and the second auxiliary girder 6 is carried by the main movable girder 3. It is like this.

Here, the length relationship of each digit will be described. The respective lengths R ₁ , R ₂ , of each main movable girder 1, 2, 3 and 4
R ₃ and R ₄ are all equal (R ₁ = R ₂ = R ₃ = R ₄ ).
Further, the lengths L ₂ and L _{3 of} the first auxiliary girder 5 and the second auxiliary girder 6 are also equal to each other (L ₂ = L ₃ ). as a result,
The total length L ₁ of the Cesars cross branching device is as follows.

[0012]

[Equation 1]

[0013] The first auxiliary digit 5 is carried to the main movable girder 1, the second auxiliary digit 6 is carried on the main movable girder 4, track K from P ₁ track K ₁ rotates by the angle θ, respectively in Figure 2 the branch line leading to the _second P ₄ is opened, the length L ₄ of the branch line P ₁ P ₄ is as follows.

[0014]

[Equation 2]

Similarly, the first auxiliary girder 5 is carried on the main movable girder 2, the second auxiliary girder 6 is carried on the main movable girder 3, and the track K ₂
In Figure 3 the branch line is opened leading from P ₃ to P ₂ of the track K _1, the length L ₅ of the branch line P ₃ P ₂ is as follows.

[0016]

(Equation 3)

Midpoint of branch line P ₁ P ₄ , that is, first auxiliary girder 5
The central point Q where the second auxiliary girder 6 and the second auxiliary girder 6 are in phase contact with each other is a branch line P ₃ P ₂
The fact that the relationship of the branch line P ₁ P ₄ with respect to the trajectory K ₁ is equivalent to the relationship of the branch line P ₃ P ₂ with respect to the trajectory K ₂ is equal to the midpoint of And the second auxiliary girder 6 is the main movable girder 1, 4 or 2, which has the same length.
It is clear from being carried in any combination of 3 to form each branch line.

The difference in length between the straight line length L ₁ (main line length) and the branch line L ₄ when the seesaw cross type branching device is parallel is L ₂ from the above equation (2). Therefore, the length of the auxiliary girder can be defined as the difference between the length of the Cesars cross type branching device and the length of the branch line. Therefore, each linear trajectory K
₁ , centering on the middle point O in the K ₂ Cesars cross type branching device, arrange an auxiliary girder of a length (L ₂ ) corresponding to the difference between the length of the Cesus crossing type branching device and the length of the branch line, By arranging movable girders with a length of (L ₁ -L ₂ ) / 2 before and after that,
The girder arrangement of the Cesars cross type branching device is specified.

FIG. 4 shows an outline of the first auxiliary girder 5. On the upper part of the body frame of the first auxiliary girder 5, there are 6 pins 7 to 12
Are fixedly arranged. Each center pin 9 and 12 is a centering pin. The pins 7, 8, 9 of the first auxiliary girder 5 are engaged with the joining mechanism attached to the main movable girder 1, and the pins 10, 11, 12 are engaged with the joining mechanism attached to the main movable girder 2. It is like this. The second auxiliary girder 6 is also shown in FIG.
The pin 7 ', 8',
9'is engaged with the joining mechanism attached to the main movable girder 3, and the pins 10 ', 11', 12 'are engaged with the joining mechanism attached to the main movable girder 4. A free type roller 13 (13 ') such as a spherical roller is attached to the bottom surface of the main frame of the auxiliary girder, and even if the main movable girder to be carried is changed and the moving direction is switched, there is no problem while contacting the base base. Be carried.

The operation in which the auxiliary girder is joined to the main movable girder 2 (or 4) and is then centered and joined to the opposing main movable girder 1 (or 3) will be described with reference to FIGS.

When the main movable girder 1 and the first auxiliary girder 5 are going to be connected, first, as shown in FIG. 6, the main movable girder 2 which holds the pins 10, 11, 12 of the first auxiliary girder 5 is held. The gripping part of the joining mechanism releases the first auxiliary girder 5 by activating the electric cylinder 29. During the releasing operation, the first auxiliary girder 5 that was in close contact with the main movable girder 2 is pushed out through the opening / closing hook member and the centering block by the repulsive force of the compression spring incorporated in the joining mechanism of the main movable girder 2. , A distance B from the main movable girder 2, and just in the middle of the main movable girders 1 and 2, as shown in FIG. 7, the joining devices of the main movable girders 1 and 2 are in a symmetrical state. As can be easily understood from this description, when the first auxiliary girder 5 is completely captured by the main movable girder 2, the first auxiliary girder 5 and the main movable girder 1 are separated by the distance 2B. . Since the lengths L ₂ and L ₃ of the auxiliary girders up to FIGS. 1 to ₃ include the length 2B,
The actual lengths of the auxiliary girders 5 and 6 are (L ₂ -2B), respectively.
And (L ₃ -2B).

In order to grip the pushed first auxiliary girder 5, the electric cylinder 13 is activated in the joining mechanism of the main movable girder 1 to move the head 20 along the fixed guide 21 along the arrow X2 shown in FIG. Retreat in the direction. As the head 20 moves backward, the triangular opening / closing plate 18 connected to the head 20 via the mounting pin 26 also moves backward. Two elongated holes 30 and 31 are formed on the front side of the triangular opening / closing plate 18, and the projecting pins 27 and 28 of the opening / closing hook members 14 and 15 are slidably loosely inserted into these elongated holes, respectively. And the open / close hook members 14 and 15 are respectively
Since the guide boxes 16 and 17 are rotatably attached to the slide members 24 and 25 of the guide boxes 16 and 17 via the pins 22 and 23, the hook portions 32 and 33 of the opening and closing hook members 14 and 15 are moved by retracting the triangular opening and closing plate 18. Respectively draw a trajectory of radius R5 and continue the closing operation until they come into contact with the pins 8 and 7 of the auxiliary girder 5. At this time, the locus of movement of the protrusion pin 27 is an arc having a radius R6.

The opening / closing plate 18 retracts by the stroke A until the hook portions 32, 33 come into contact with the pins 8, 7 and hold them. Although the closing operation of the hook members 14 and 15 is stopped by gripping the pin, the electric cylinder 13 is further driven to retract the opening / closing plate 18.
As a result, the first auxiliary girder 5 separated by the distance B is
The center pin 9 is inserted into the V groove of the centering block 19 and is centered and joined to the main movable girder 1. that time,
The sliding members 24 and 25 in the guide boxes 16 and 17 are
The stroke B is slid and retracted while resisting the compression forces of the compression springs 34 and 35, respectively. Therefore, the compression spring 34,
When closing the opening / closing hook members 14 and 15, the position of the opening / closing hook members 14 and 15 is not changed even when the electric cylinder 13 is pulled, and the position of the opening / closing hook members 14 is not changed. The spring rigidity is such that it is compressed only when it is forcibly stopped and then subjected to a pulling action.

As described above, the auxiliary girder is the main movable girder 1.
(Or 3). The state after joining is shown in FIG. After joining, the main movable girder 1 carries the first auxiliary girder 5 and rotates in the arrow Y direction.

The first auxiliary girder 5 is used to switch the branch line.
Is released from the main movable girder 1 and captured by the main movable girder 2, the procedure is the reverse of the above. That is, the electric cylinder 13 advances in the direction of arrow X1 in FIG. 6, and the elasticity of the springs 34 and 35 causes the sliding members 24 and 25 to slide forward in the guide boxes 16 and 17 by the stroke B, and then to open and close. The hook members 14 and 15 start to open. The triangular opening / closing plate 18 moves stroke (A + B) to fully open the opening / closing hook member. At this time, the first auxiliary girder 5
Stops at a position separated from the main movable girder 1 by a distance B, and is thereafter captured by the joining mechanism of the main movable girder 2.

[0026]

According to the invention described in claim 1, at each main line branch portion of the double track, an auxiliary girder having a length corresponding to the difference between the main line length of the device and the branch line length, and both sides thereof are provided. Each of the main movable girders and the joining device attached to the main movable girder, respectively, at the time of branch switching, one of the joining devices that capture the auxiliary girder is released,
After the auxiliary girder is captured by the other joining device, the main movable girder on the side that captures the auxiliary girder is configured to rotate to open the branch line. Therefore, there is no need for a swivel type auxiliary girder having a driving force at the center of the intersection of the X-shaped branch, and since there is no such swivel type auxiliary girder, the automatic control circuit can be simplified. In the conventional swivel type auxiliary girder, since it is necessary to provide a mechanism for turning to provide a considerable degree of structural strength, it is difficult to reduce the size, but in the branching device of the present invention, the auxiliary girder is Since it is only captured by the splicing device and carried on the main movable girder, it only needs to have a length corresponding to the difference between the main line length and the branch line length, and it can be manufactured with the minimum possible length. And easy to manufacture. Since it is sufficient to provide an auxiliary girder for carrying, the mounting foundation structure becomes simple. Maintenance is easier than the swivel type auxiliary girder, and the practical installation area can be minimized.

According to the second aspect of the present invention, in the branching device, the joining device attached to the main movable girder and capturing the auxiliary girder includes two openable and closable holding members, a centering member, and A connecting member for rotatably connecting the two gripping members,
Since it is composed of a drive device for moving the connecting member in position, the auxiliary girder can be centered and captured at the same time, which is convenient for the branching device.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a branching device according to the present invention.

FIG. 2 is a schematic plan view showing a state in which branch lines P ₁ P ₄ are opened in the device of FIG.

FIG. 3 is a schematic plan view showing a state in which a branch line P ₃ P ₂ is opened in the apparatus of FIG.

FIG. 4 is a schematic perspective view showing a first auxiliary girder.

FIG. 5 is a schematic perspective view showing a second auxiliary girder.

FIG. 6 is a schematic plan view illustrating capturing of an auxiliary girder by the joining mechanism according to the present invention.

FIG. 7 is a schematic plan view illustrating that the auxiliary girder is released and is in a neutral position.

FIG. 8 is a schematic plan view showing a state where the capture of the auxiliary girder is completed.

[Explanation of symbols]

1, 2, 3, 4 Main movable girder 5 1st auxiliary girder 6 2nd auxiliary girder K ₁ , K ₂ Double track orbit P ₁ , P ₂ , P ₃ , P ₄ rotation fulcrum

Claims (2)

[Claims] 1. At each main line branch of a double track,
An auxiliary girder having a length corresponding to the difference between the main line length and the branch line length of the device, main movable girders disposed on both sides of the auxiliary girder, and a joining device attached to the main movable girder, respectively. At the time of branch switching, one splicing device that captures the auxiliary girder is released, the other splicing device captures the auxiliary girder, and the main movable girder on the side that captures the auxiliary girder rotates to branch line. Girder type branching device for railroad tracks. 2. An openable / closable gripping member, a centering member, a connecting member for rotatably connecting the two gripping members, and a drive device for moving the connecting member. Joining device.