JP2002173026A - Coupling mechanism of coupler for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coupling mechanism of a coupler for rolling stocks capable of preventing wheels from being lifted during running. SOLUTION: This coupling mechanism is provided with a coupling member 1 having upper and lower surfaces formed by horizontal surfaces and a connecting part 11 where a pin hole 12 is formed in the vertical direction, a coupler 2 having a forked connecting part 21 formed like a fork for clamping upper and lower surfaces of the connecting part 11 at one end and pin holes 22, 23 formed opposite to each other in the forked connecting part 21, and a longitudinal pin 3 rotatably inserted in the respective pin holes 22, 12, 23 of both connecting arts 11, 21. The pin hole 12 of the coupling member 1 is formed by a circular hole, and the pin holes 22, 23 of the forked connecting part 21 are elongated holes directed to perpendicularly intersect the center line connecting the coupling member 1 and the coupler 2 on a straight line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle connecting apparatus for connecting members to be connected to each other so as to be swingable in a vertical direction through a horizontal pin and to be swingable in a horizontal direction through a vertical pin. The present invention relates to a connection mechanism connected by the vertical pins.

[0002]

2. Description of the Related Art As a connecting mechanism of a conventional connecting device for a railway vehicle, a connecting mechanism shown in FIG. 7 (hereinafter referred to as "conventional example").
Is generally known. In this conventional example, as shown in FIG. 7, one connector 50, the other connector 60 connected to the connector 50, and a joint member 70 connected to both connectors.
And

One end of one connector 50 is connected to a forked connecting portion 5.
The connecting portion 51 has pin holes 52 and 53 for rotatably inserting a horizontal pin 80 formed opposite to each other. The other coupler 60 is generally a shock absorber (not shown).
It has. A forked connecting portion 6 is provided at the end of the connecting device 60.
In this connecting portion 61, pin holes 62 and 63 for rotatably inserting a vertical pin 81 are formed facing each other.

The joint member 70 has a joint portion 71 inserted into the one forked connecting portion 51 and a joint portion 72 inserted into the other forked connecting portion. A pin hole 73 for rotatably inserting a horizontal pin 80 is formed in one of the joint portions 71 in a horizontal direction. The horizontal pin 80 is inserted into the pin holes 52, 53, and 73 to form a joint with the forked connecting portion 51. The part 71 is connected. Further, a pin hole 74 for rotatably inserting a vertical pin 81 is formed in the other joint portion 72 in a vertical direction. The vertical pin 81 is inserted into the pin holes 62, 63 and 74, and the forked connecting portion 61 is formed. And the joint part 72 are connected. Thus, the couplers 50 and 60 are relatively swingable in the vertical direction with the horizontal pin 80 as a fulcrum, and relatively swingable in the horizontal direction with the vertical pin 81 as a fulcrum.

In addition, the pin holes 52, 53, 62, 6
3, 73 and 74 are all constituted by circular holes. In FIG. 7, reference numeral 83 denotes a head formed at one end of the horizontal pin 80;
8 is a nut member screwed to the other end of the horizontal pin 80;
Reference numeral 5 denotes a head formed at one end (upper end) of the vertical pin 81.

The conventional example configured as described above has the following problems. Railroad vehicles run by rotating the iron wheel of the wheel on the rail, and the wheel is an annular flange for preventing derailment that is protruded along the outer peripheral edge of the side surface of the iron wheel to prevent derailment during traveling. It has.

As shown in FIG. 5A, when the railway vehicle 40 is traveling on straight railway rails 41, 41 in the direction of the arrow in FIG.
The joint portion 44 between the vehicle 2 and the vehicle center line 43 of the following vehicle 40b connected to the vehicle 40a coincides (the same applies when traveling in the direction opposite to the arrow direction). Therefore,
Even if a lateral force is applied during traveling in this state due to, for example, wind pressure such as passing an oncoming vehicle, the wheels will skid and will not derail because the flanges cope with them. Also, as shown in FIG. 5b, the rails 41, 4 on which the vehicle 40 is curved are shown.
1, the joint portion 44 between the vehicle center line 42 of the front vehicle 40a and the vehicle center line 43 of the following vehicle 40b coincides with each other. Same when there is). Therefore, even if the same force as described above is applied during traveling in this state, derailment can be prevented because the flange is used for the swinging operation with the vertical pin as a fulcrum and the side sliding action of the wheel.

However, as shown in FIG. 5C, when the vehicle moves from the curved rails 41, 41 to a straight rail, the vehicle center line 42 of the front vehicle 40a and the following vehicle 40b
Of the joints 44a and 44b with the vehicle center line 43 (the same applies when the vehicle is traveling in the direction opposite to the direction of the arrow in the figure). Therefore, the following problem occurs in the conventional example.

That is, as shown in detail in FIG. 6, when transitioning from a curved portion to a straight portion, the joint 4
The maximum deviation occurs when the centers of 4a and 44b are at the position of the linear portion (the same applies when shifting from the curved portion to the linear portion). However, in the conventional example, the pin holes 74 of the joint member 70 and the pin holes 62, 6 of the forked connecting portion 61 of the coupler 60 are provided.
3 is a circular hole, and the vertical pin 81 is inserted into these holes 74, 62, 63 to connect the two, so that the joint member 70 and the coupler 60 relatively swing with the vertical pin 81 as a fulcrum. It can move, but the position of the fulcrum does not change. However, on the other hand, the positions of the joint portions 44a and 44b are displaced as described above, and a force is applied in a direction away from each other, so that the wheels 45 and 46 of the front vehicle 40a and the following vehicle 40b move in the direction of the force. On the rail 41, the rear wheel 45a of the front vehicle 40a slides rightward in FIG. 6, and the front wheel 46a of the following vehicle 40b slides leftward to flanges of the two wheels 45a, 46a (see FIG. 6). (Not shown) strongly contacts the side surface of the rail 41,
A large braking force is exerted by the contact friction with the rail 41, and an excessive force for expanding the rails 41, 41 is applied. As a result, the forward vehicle 40a leans rightward and the following vehicle 40b leans leftward, so that the rear wheels 45b on the left side of the forward vehicle 40a and the front wheels 46 on the right side of the following vehicle 40b.
b is lifted, and there is a risk of derailment or falling.
In particular, when a lateral force is applied to the vehicle by wind pressure or the like, such as when the vehicle passes an oncoming vehicle in the above state, the risk is further increased.

[0010]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a connecting mechanism of a connecting device for a railway vehicle which can prevent the wheels from being lifted during running and thereby contribute to the prevention of a derailment accident or a fall accident. It is intended to do so.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, the members to be connected are vertically swingable via a horizontal pin and are connected via a vertical pin. In a connecting mechanism for connecting by the vertical pin of a connecting device for a railway vehicle that is swingably connected in a left-right direction, a coupling member having a connecting portion having upper and lower surfaces formed in a horizontal plane and having a pin hole directed vertically. A connector having a forked connecting portion formed in a forked shape so as to sandwich the upper and lower surfaces of the connecting portion, a connector formed with pin holes opposed to each other in the forked connecting portion, and the respective pins of the both connecting portions; A vertical pin rotatably inserted into the hole, wherein the pin hole of the joint member is constituted by a circular hole, and the pin hole of the forked connecting portion is a center line connecting the joint member and the coupler in a straight line. It consists of a slot oriented in the direction perpendicular to It is characterized in.

According to the first aspect of the present invention, the vertical pin is slidable together with the joint member within the range of the long hole of the forked connecting portion. When shifting from the portion to the straight portion (or vice versa), the joint member and the coupler relatively slide to displace the position of the fulcrum where the two swing in the left and right direction. Therefore, a large braking force due to strong contact between the flange of the wheel and the side surface of the rail or an unreasonable force for expanding the rail can be prevented from being applied, thereby preventing the wheel from being lifted. Therefore, according to the present invention, a derailment accident or a fall accident during traveling can be prevented.

According to a second aspect of the present invention, in the connecting mechanism for a railway vehicle connecting device according to the first aspect, the pin hole of the forked connecting portion is formed as a circular hole, and the pin hole of the joint member is connected to the joint. It is characterized by being constituted by an elongated hole directed in a direction perpendicular to a center line connecting the member and the coupler on a straight line. According to the second aspect of the present invention, the vertical pin is slidable within the long hole of the joint member together with the forked connecting portion of the coupler. However, a derailment accident or a fall accident during traveling can be prevented.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows one embodiment (Embodiment 1) of a connecting mechanism of a connecting device for a railway vehicle according to the present invention. FIG. 1A is a plan view, FIG. 1B is a longitudinal sectional view, and FIG. FIG. 2 is an explanatory view for explaining the configuration of the pin hole of the member and the pin hole of the coupler, and FIG. 2 is an explanatory view for illustrating the configuration of the pin hole of the forked coupling portion of the coupler of the coupling mechanism; FIG. 3 is a diagram for explaining the operation of the connecting mechanism.

1 to 3, the connecting mechanism of the connecting device for a railway vehicle according to the first embodiment includes a joint member 1,
The connector 2 connected to the joint member 1 and the two
And a vertical pin 3 for connecting the two to each other so as to be swingable relatively in the left-right direction.

At one end of the joint member 1, there is provided a connecting portion 11 having upper and lower surfaces formed in parallel horizontal planes and a pin hole 12 oriented vertically, and the pin hole 12 allows the vertical pin 3 to rotate freely. It is composed of a circular hole large enough to be inserted into the hole. Although not disclosed in the drawings, the other end side of the joint member 1 is interposed in the same manner as in the conventional example shown in FIG. And are connected so as to be swingable in the vertical direction.

At the end (tip) of the connector 2, there is provided a forked connecting portion 21 formed in a forked shape so as to sandwich the upper and lower surfaces of the connecting portion 11. The forked connecting portion 21 has the pin 3 Are provided opposite to each other so as to rotatably insert the pin holes 22 and 23. As shown in detail in FIG. 2, the two pin holes 22 and 23 are formed as elongated holes directed in a direction orthogonal to a center line L connecting the joint member 1 and the coupler 2 on a straight line. Although not shown, the coupler 2 includes a shock absorber.

The vertical pin 3 has a head 32 at one end (upper end) of a round bar 31, and when the connecting portion 11 of the joint member 1 is inserted into the forked connecting portion 21, each of the pin holes 22, 1 is inserted.
2 and 23. As a result, the joint member 1 and the coupler 2 are relatively swingable in the left-right direction with the vertical pin 3 as a fulcrum, and the pin 3 together with the joint 11 of the joint member 1 It is configured to be slidable within the range of the holes 22, 23 (elongated holes).

The first embodiment is configured as described above, and the vertical pin 3 and the connecting portion 11 of the joint member 1 are in the range of the long holes (pin holes 22, 23) of the forked connecting portion 21 together with the connecting portion 11 as described above. The joint member 1 and the coupler 2 are relatively slid when the vehicle is traveling on a railroad rail, for example, when moving from a curved portion to a straight portion (or vice versa). Then, both 1 and 2 displace the position of the fulcrum swinging in the left-right direction to correspond (see FIG. 3). Therefore, a large braking force due to strong contact friction between the flange of the wheel and the side surface of the rail or an excessive force for expanding the rail can be prevented from being applied, so that the wheel is prevented from lifting. Therefore, a derailment accident or a fall accident during traveling can be prevented.

FIG. 4 is an explanatory view showing a main part of another embodiment (Embodiment 2) of the connecting mechanism of the connecting device for a railway vehicle of the present invention. In the second embodiment, the pin hole 12a on the joint member 1 side is constituted by a long hole, and the pin holes 22a, 22a on the coupler 2 side are formed.
It is characterized in that 3a is constituted by a circular hole.

That is, in the second embodiment, the pin holes 22a and 23a provided in the forked connecting portion 21 of the coupler 2 are formed as circular holes.
Further, a pin hole 12a provided in the connecting portion 11 of the joint member 1 has a center line L (FIG. 2) connecting the joint member 1 and the coupler 2 on a straight line.
(See FIG. 1). The other configuration is the same as that of the first embodiment, and the description is omitted.

In the second embodiment, as described above, the joint member 1 and the coupler 2 are relatively swingable in the left-right direction with the vertical pin 3 as a fulcrum, and the pin 3 is connected to the forked connecting portion 2 of the coupler 2.
Together with 1, it is swingable within the range of the pin hole 12 a (elongated hole) of the connecting portion 11. Therefore, it operates in the same manner as in the first embodiment, and can prevent a derailment accident or a fall accident during running of the vehicle.

[0023]

According to the present invention, it is possible to prevent the wheels from being lifted while the vehicle is running, thereby contributing to the prevention of derailment accidents or falling accidents.

[Brief description of the drawings]

1 shows an embodiment of a connecting mechanism of a connecting device for a railway vehicle according to the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a vertical sectional view, and FIG. FIG. 4 is an explanatory diagram illustrating a configuration of a pin hole portion of the coupler.

FIG. 2 is an explanatory view for explaining a configuration of a pin hole of a forked connecting portion of the connecting device of the connecting mechanism;

FIG. 3 is an explanatory view of the operation of the above-mentioned connection mechanism.

FIG. 4 is an explanatory view showing a main part of another embodiment of the connecting mechanism of the connecting device for a railway vehicle of the present invention.

FIG. 5 is an explanatory view showing a problem of a connecting mechanism of a conventional connecting device for a railway vehicle.

FIG. 6 is an explanatory view showing an enlarged part of the drawing (FIG. 5a) disclosed in FIG. 5;

7A and 7B show a coupling mechanism of a conventional railway vehicle coupling device, wherein FIG. 7A is a plan view, FIG.
FIG. 3C is an explanatory view for explaining the configuration of the pin hole of the coupling member and the pin hole of the coupler.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Joint member 2 ... Connector 3 ... Vertical pin 11 ... Connection part 12 ... Pin hole 21 ... Bifurcated connection part 22, 23 ... Pin hole

Claims (2)

[Claims] 1. A connecting device for a railway vehicle which connects members to be connected to each other via a horizontal pin so as to be swingable in a vertical direction and via a vertical pin so as to be swingable in a horizontal direction. In the coupling mechanism, a joint member having a coupling portion having upper and lower surfaces formed in a horizontal plane and having pin holes directed vertically, and a bifurcated coupling portion formed in a forked shape so as to sandwich the upper and lower surfaces of the coupling portion. A connector having pinholes formed in the bifurcated connecting portion so as to face each other, and a vertical pin rotatably inserted into each of the pinholes of the both connecting portions. Is constituted by a circular hole, and the pin hole of the forked connecting portion is constituted by an elongated hole directed in a direction orthogonal to a center line connecting the joint member and the coupler on a straight line. A coupling mechanism for railway vehicle coupling devices. 2. The connecting mechanism for a railway vehicle connecting device according to claim 1, wherein the pin hole of the forked connecting portion is formed as a circular hole, and the pin hole of the joint member is connected to the joint member and the coupler. A connecting mechanism for a connecting device for a railway vehicle, comprising a long hole directed in a direction orthogonal to a center line connecting the lines on a straight line.