JP2020147091A - Stopper device for railway vehicle tilt window - Google Patents

Abstract

To provide a stopper device for a tilt window of a railway vehicle which prevents sudden closing phenomenon caused by negative pressure generated when approaching tunnel, is realized with a compact constitution and improves operability for a user to close manually the window.SOLUTION: In a stopper device for a railway vehicle tilt window, an introduction passage part of a pin passage of a guide groove is formed for the pin to enter the groove in such a direction that a stay moves to a base member downward vertically by self-weight, when the window begins being closed from a fully opened state and a pin travels from a fully opened position of the guide groove.SELECTED DRAWING: Figure 7

Description

The present disclosure relates to a device that limits the operation of a collapsible window that is tilted and opened / closed with respect to a window frame of a railway vehicle.

Some railcars are provided with foldable windows that tilt to open and close with respect to the window frame. When a railroad vehicle enters a tunnel with the foldable window open, the foldable window may suddenly close due to the generation of large negative pressure. Therefore, in railway vehicles equipped with folding windows, measures to prevent such a phenomenon are required.

In a general foldable window, a stay for holding the foldable window at a constant angle is provided, and a torque stay or a stop stay can be used for the stay. The torque stay keeps the collapsible window fully open due to frictional force generated between the pair of arms. The stop stay is provided with a locking portion at the tip of the guide groove of the stay, and a pin protruding from the window frame fits into the locking portion of the guide groove to hold the collapsible window in a fully open state (for example, Patent Document). See 1 and 2).

Japanese Unexamined Patent Publication No. 11-324461 Japanese Patent No. 6037645

When a torque stay is used, it is necessary to use a torque stay with a high holding force as a countermeasure against the phenomenon that the collapsible window suddenly closes due to the generation of a large negative pressure. However, the diameter of the torque stay having high holding power is large, and it cannot be stored in the small gap between the window frame and the collapsible window in the fully closed state, and it is practically difficult to take measures with the torque stay.

When adopting a stop stay, if a locking portion is formed so that the collapsible window can withstand the force even if the closing force is large, the collapsible window suddenly becomes sudden due to a large negative pressure even in a compact configuration. The closing phenomenon can be prevented. However, when the user manually closes the collapsible window, it is necessary for the user to directly tilt the stay to release the lock and then close the collapsible window. The extra requirement makes the user's operability worse.

Therefore, in the present disclosure, when the user manually closes the collapsible window while realizing a stopper device in a compact configuration that prevents the collapsible window from suddenly closing due to the generation of negative pressure when the railway vehicle enters the tunnel. The purpose is to improve the operability of.

The foldable window stopper device for a railroad vehicle according to one aspect of the present disclosure is a device for limiting the operation of a foldable window that is tilted with respect to a window frame of a railroad vehicle to open and close, and is the window frame or the above-mentioned possible It comprises at least one base member fixed to one member consisting of one of the folding windows and at least one stay rotatably connected to the window frame or the other member consisting of the other of the folding windows. One of the base member or the stay has a pin, the other of the base member or the stay has a guide groove through which the pin is inserted, and the guide groove is in a state where the retractable window is fully opened. A fully open position portion where the pin is located, a fully closed position portion where the pin is located when the foldable window is fully closed, and a pin passage portion that connects the fully closed position portion and the fully open position portion. , It is arranged closer to the fully open position portion than the fully closed position portion, faces the fully open position portion from the fully closed position portion side at an angle different from the pin passage portion, and tilts the collapsible window. It has a closed limiting position portion provided along the locus of movement of the stay, and the inner peripheral edge of the guide groove faces the fully open position portion so as to define the closed limiting position portion. The pin passage portion has a closed limiting portion that interferes with the pin that has moved from the fully open position portion to the closed limiting position portion, and the pin passage portion is from a region of the guide groove on the side of the fully open position portion with respect to the closed limiting position portion. The introduction passage portion includes an introduction passage portion extending in a direction different from the closed restriction position portion and a main passage portion connecting the introduction passage portion to the fully closed position portion, and the introduction passage portion has the retractable window fully opened. When the pin starts to be closed from the state and moves from the fully open position portion, the stay moves downward in the vertical direction due to its own weight with respect to the base member, so that the pin is formed in the direction in which the pin enters from the region. There is.

According to the above configuration, even if a railroad vehicle enters the tunnel and a large negative pressure is generated and the collapsible window is suddenly closed, the pin interferes with the closing restriction portion of the inner peripheral edge of the guide groove of the stay. , The collapsed window is prevented from closing suddenly. At that time, the collapsible window moves quickly and the pin reaches the closing restriction portion immediately, so that there is no time for the stay to drop its own weight, and the pin does not enter the introduction passage portion. On the other hand, when the user manually closes the collapsible window, the collapsible window moves relatively slowly, so that the end of the stay on the base member side descends by its own weight when the pin leaves the fully open position of the guide groove. Then, the pin enters the introduction passage portion of the pin passage portion without facing the closing restriction portion. Therefore, the pin can reach the fully closed position portion through the pin passage portion without interfering with the closing limiting portion. Therefore, when the user manually closes the folding window, it is not necessary to perform a special operation such as directly tilting the stay.

According to the present disclosure, it is possible to realize a stopper device in a compact configuration that prevents the folding window from suddenly closing due to the generation of negative pressure when a railroad vehicle enters a tunnel, and the user manually closes the folding window. The operability can be improved.

It is a front view seen from the car inside of the folding window of the railroad vehicle which concerns on embodiment. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. (A) is a plan view of the first stopper unit shown in FIG. 2, and (B) is a side view of the first stopper unit. (A) is a plan view of the first stay of the first stopper unit, and (B) is a plan view of the second stay of the second stopper unit. (A) shows the positional relationship between the first stay and the pin when the foldable window is fully open, and (B) shows the positional relationship between the first stay and the pin when the foldable window is closed due to sudden closing. It is a drawing. (A) is a drawing showing the positional relationship between the first stay and the pin when the foldable window is fully open, and (B) is a drawing showing the positional relationship between the first stay and the pin when the foldable window is manually closed. (C) is a drawing showing the positional relationship between the first stay and the pin when the foldable window is fully closed. (A) is a drawing showing the positional relationship between the second stay and the pin when the foldable window is fully open, and (B) is a drawing showing the positional relationship between the second stay and the pin when the foldable window is manually closed. (C) is a drawing showing the positional relationship between the second stay and the pin when the foldable window is fully closed. (A) is a drawing showing the positional relationship between the second stay and the pin when the foldable window is fully open, and (B) is the second stay in the closed restricted state when the foldable window starts to close gently and then suddenly closes. It is a drawing which shows the positional relationship of a pin.

Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a front view of the folding window 5 of the railway vehicle according to the embodiment as viewed from the inside of the vehicle. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. As shown in FIG. 1, a window frame 1 is provided at an opening of a side structure of a railway vehicle, and a collapsible window 4 that tilts to open and close is attached to the window frame 1. Specifically, a partition frame 2 extending in the left-right direction (vehicle longitudinal direction) of the window frame 1 is fixed to the window frame so as to partition the window opening surrounded by the rectangular window frame 1 vertically. Of the window openings surrounded by the window frame 1, the window opening on the lower side of the partition frame 2 is closed by the fixed window 3, and among the window openings surrounded by the window frame 1, the window opening on the lower side of the partition frame 2 Is closed by a collapsible window 4 so that it can be opened and closed.

As shown in FIGS. 1 and 3, the lower end of the foldable window 4 is rotatably connected to the window frame 1 via a support shaft 5 having a horizontal axis X, and the upper end of the foldable window 4 is connected to the upper end. A handle 6 for the user to grasp and open / close the foldable window 4 is attached. When the user manually operates the handle 6 and pulls it inside the vehicle, the collapsible window 4 tilts inward around the horizontal axis X and opens.

As shown in FIG. 2, the collapsible window 4 is provided with a stopper device 10 that limits the operation of the collapsible window 4. The stopper device 10 is provided on the first stopper unit 11 provided on one side in the left-right direction (one side in the vehicle longitudinal direction) of the foldable window 4 and on the other side in the left-right direction (the other side in the vehicle longitudinal direction) of the foldable window 4. The second stopper unit 12 is provided. Each of the first stopper unit 11 and the second stopper unit 12 is arranged in a gap between the inner surface of the window frame 1 and the outer surface of the collapsible window 4.

As shown in FIGS. 2 and 3, the first stopper unit 11 has a first base member 21 fixed to the inner surface of the window frame 1 and a rotation shaft 23 at an intermediate portion in the vertical direction of the outer surface of the collapsible window 4. It includes a first stay 22 that is rotatably supported via the first base member 21 and is engaged with the first base member 21 so as to be relatively displaceable. The second stopper unit 12 is also rotatable on the outer surface of the foldable window 4 and the second base member 31 fixed to the inner surface of the window frame 1 via the rotation shaft 33 (see FIG. 8A). It includes a second stay 32 that is supported and engages with the second base member 31 so as to be relatively displaceable. The groove shape of the first stay 22 and the groove shape of the second stay 32 are different from each other between the first stopper unit 11 and the second stopper unit 12, but the other configurations are the same.

FIG. 4A is a plan view of the first stopper unit 11, and FIG. 4B is a side view of the first stopper unit 11. As shown in FIGS. 4A and 4B, the first base member 21 includes a plate B fixed to the inner side surface 1a of the window frame 1, a columnar pin P protruding from the plate B, and a pin P. It has a flange-shaped cap C provided at the tip. The first stay 22 is a plate long in one direction. A guide groove 25 through which the pin P is inserted is formed on one end side of the first stay 22, and a shaft support hole 26 through which the rotating shaft 23 is inserted is formed on the other end of the first stay 22. There is. The plate 24 to which the rotating shaft 23 through which the shaft support hole 26 is inserted is fixed to the outer surface 4a of the folding window 4, so that the first stay 22 uses the rotating shaft 23 as a fulcrum with respect to the folding window 4. It is rotatably connected. Although the first stopper unit 11 has been described in FIGS. 4A and 4B, the configuration of the second stopper unit 12 is the same except for the shape of the guide groove of the stay.

5 (A) is a plan view of the first stay 22 of the first stopper unit 11, and FIG. 5 (B) is a plan view of the second stay 32 of the second stopper unit 12. As shown in FIGS. 5A and 5B, the guide grooves 25 and 35 of the first stay 22 and the second stay 32 are fully open position portions A1 and B1, fully closed position portions A2 and B2, and pin passage portions A3. It has B3 and closed restriction positions A4 and B4, respectively. The fully open position portions A1 and B1 are portions where the pin P (see FIG. 4) is located with the collapsible window 4 (see FIG. 3) fully open. The inner peripheral edges of the guide grooves 25 and 35 have open limit portions 25a and 35a that interfere with the pins P located at the fully open position portions A1 and B1 so that the fully open collapsible window 4 does not further open. The fully closed position portions A2 and B2 are portions where the pin P is located with the collapsible window 4 fully closed. The pin passage portions A3 and B3 are passage-shaped portions that connect the fully open position portions A1 and B2 and the fully closed position portions A2 and B2.

The closed restriction position portions A4 and B4 are arranged closer to the fully open position portions A1 and B1 than the fully closed position portions A2 and B2, and are arranged at different angles from the pin passage portions A3 and B3 with respect to the fully open position portions A1 and B1. It is a portion facing from the fully closed position portions A2 and B2 sides. The closing restriction position portions A4 and B4 are arranged at positions along the movement loci of the first and second stays 21 and 31 accompanying the tilting of the collapsible window 4 when viewed from the fully open position portions A1 and B1. That is, the center lines M1 and M2 connecting the centers of the closed restriction position portions A4 and B4 and the centers of the fully open position portions A1 and B1 are along the movement loci of the first and second stays 21 and 31. In the present embodiment, the closing restriction position portions A4 and B4 are arranged on the other end side of the stay (shaft support holes 26 and 36 sides) when viewed from the fully open position portions A1 and B1, and are closed in the guide grooves 25 and 35. The regions R1 and R2 from the limited position portions A4 and B4 to the fully open position portions A1 and B1 extend in the stay longitudinal direction.

The inner peripheral edges of the guide grooves 25 and 35 face the fully open position portions A1 and B1 so as to define the closed restricted position portions A4 and B4, and the pins moved from the fully open position portions A1 and B1 to the closed restricted position portions A4 and B4. It has closed limiting portions 25b and 35b that interfere with P (see FIG. 4). The closing restriction portions 25b and 35b have a concave shape along the outer peripheral surface of the pin P, and specifically have an arc shape. Therefore, the pins P that have moved from the fully open position portions A1 and B1 to the closed restricted position portions A4 and B4 are appropriately held by the closed restricted positions 25b and 35b, and the pins P suddenly fall off from the closed restricted position portions A4 and B4. Can be prevented.

The pin passage portions A3 and B3 include an introduction passage portion A3a and a main passage portion A3b. The introduction passage portions A3a and B3a are connected to the regions R1 and R2 in the guide grooves 25 and 35. Specifically, the introduction passage portions A3a and B3a are connected to the fully open position portions A1 and B1 side of the closed restricted position portions A4 and B4 in the regions R1 and R2, and are different from the closed restricted position portions A4 and B4. It extends in the direction. The main passage portions A3b and B3b connect the introduction passage portions A3a and B3a to the fully closed position portions A2 and B2. That is, the main passage portions A3b and B3b extend from the introduction passage portions A3a and B3a toward the guide grooves 25 and 35.

The introduction passage portions A3a and B3a have first and second stays with respect to the pin P when the foldable window 4 starts to be closed from the fully open state and the pins P (see FIG. 3) move from the fully open position portions A1 and B1. One ends of 22 and 32 move downward in the vertical direction (around the shaft support holes 26 and 36) by their own weight, so that the pins P extend from the regions R1 and R2 in the direction of entry. In the state where the collapsible window 4 is fully opened, the introduction passage portions A3a and B3a extend obliquely upward from the regions R1 and R2.

In the present embodiment, the angle formed by the center lines M1 and N1 connecting the centers of the fully open position portions A1 and B1 and the centers of the closed restriction position portions A4 and B4 and the center lines M2 and N2 of the introduction passage portions A3a and B3a is , The angle is narrow on the fully closed position A2 side (the other end side of the stay). Specifically, the angles θ1 and θ2 formed by the perpendicular line orthogonal to the center lines M1 and N1 and the extending direction of the introduction passage portions A3a and B3a (that is, the direction in which the center lines M2 and N2 extend) are 10 ° to It is 30 °.

The length from the fully open position portion A1 to the closed limit position portion A4 in the guide groove 25 of the first stay 22 is shorter than the length from the fully open position portion B1 to the closed limit position portion B4 in the guide groove 35 of the second stay 32. .. That is, in the stay longitudinal direction, the length of the region R1 of the guide groove 25 of the first stay 22 is shorter than the length of the region R2 of the guide groove 35 of the second stay 32. In the stay longitudinal direction, the length L2 from the fully open position portion B1 in the guide groove 35 of the second stay 32 to the introduction passage portion B3a is from the fully open position portion A1 in the guide groove 25 of the first stay 22 to the introduction passage portion A3a. It is longer than the length (in the present embodiment, the length from the fully open position portion A1 to the introduction passage portion A3a in the guide groove 25 of the first stay 22 is zero, so the reference numeral of the length is shown in FIG. 5 (A). Cannot be illustrated.) The center line M2 of the introduction passage portion A3a of the first stay 22 extends toward the center of the fully open position portion A1. On the other hand, the center line N2 of the introduction passage portion B3a of the second stay 32 extends toward the intermediate portion of the center line N1 connecting the center of the fully open position portion B1 and the center of the closed restriction position portion B4.

Comparing the guide groove 25 of the first stay 22 and the guide groove 35 of the second stay 32, the distance from the fully open position portion B1 to the closed limit position portion B4 is larger than the distance from the fully open position portion A1 to the closed limit position portion A4. The distance from the fully open position portion B1 to the introduction passage portion B3a is longer than the distance from the fully open position portion A1 to A3a. Further, the angle θ2 formed by the vertical line orthogonal to the center line N1 in the second stay 32 and the extending direction of the introduction passage portion B3a is the angle formed by the vertical line orthogonal to the center line M1 and the extending direction of the introduction passage portion A3a. It is smaller than θ1. The difference between the angle θ1 and the angle θ2 is determined according to the length of the distance L2, and is, for example, 1 to 5 °.

Hereinafter, the operation of the stopper device 10 will be described for each situation with reference to FIGS. 6 to 9.

[Suddenly a large negative pressure occurs and suddenly closes]
As shown in FIG. 6A, when a railroad vehicle with the foldable window 4 fully open enters the tunnel, a large negative pressure suddenly occurs on the outside of the foldable window 4 and the foldable window 4 is suddenly pushed. The closing force acts. As shown in FIG. 6B, when the collapsible window 4 moves quickly in the closing direction, the pin P moves from the fully open position portion A1 to the closed restricted position portion A4 due to the movement of the first stay 22 linked to the collapsible window 4. And promptly interferes with the closing limiting portion 25b of the guide groove 25 to prevent the collapsible window from suddenly closing. At that time, the collapsible window 4 moves quickly and the pin P immediately reaches the closing restriction position portion A4, so that one end of the first stay 22 (the end on the pin P side) drops by its own weight around the rotation shaft 23. The time runs out and the pin P does not enter the introduction passage portion A3a.

The introduction passage portion A3a extends in the direction toward the fully open position portion A1 side from the main passage portion A3b toward the region R1. Therefore, during the opening operation of the foldable window 4, the pin P smoothly passes through the introduction passage portion A3a and is held by the fully open position portion A1 by simply opening the foldable window 4 normally. Even when the folding window 4 is closed, the pin P is smoothly guided to the introduction passage portion A3a to reach the main passage portion A3b simply by the user simply closing the folding window 4 normally. Therefore, the operation feeling when the user manually opens and closes the collapsible window 4 is improved. Further, in the first stay 22, since the distance between the fully open position portion A1 and the closed restriction position portion A4 is short, the operating angle of the collapsible window 4 until the stopper function is activated can be small, and it is possible to pass through the tunnel. The fluttering of the fallen window 4 is also suppressed.

[Manual closing operation]
In the manual closing operation of the foldable window 4, the movements of the first stay 22 are shown in FIGS. 7 (A) to 7 (C), and the movements of the second stay 32 are shown in FIGS. 8 (A) to 8 (C). As shown in FIGS. 7A and 7B, when the user gently closes the collapsible window 4, the first stay 22 linked to the collapsible window 4 moves slowly, so that the pin P is in the fully open position A1. By moving away from, the end of the first stay 22 on the pin P side descends around the rotation shaft 23 by its own weight before reaching the closed restricted position portion A4, and the pin P does not face the closed restricted position portion A4. Enter the introduction passage part A3a. At that time, as shown in FIG. 8A, since the region R2 of the guide groove 35 of the second stay 32 is relatively long, the pin P is also introduced into the closing restriction position portion B4 on the second stay 32 side. It is in a state where it does not reach B3a and still remains in the region R2 (that is, a state between FIG. 8A and FIG. 8B).

When the closing operation of the collapsible window 4 is continued as it is, as shown in FIG. 8 (B), when the pin P on the second stay 32 side comes to the position corresponding to the introduction passage portion B3a in the region R2, the second stay The end of the stay 32 on the pin P side descends around the rotation shaft 33 due to its own weight. As a result, the pin P enters the introduction passage portion B3a without facing the closing restriction position portion B4. Further, when the closing operation of the folding window 4 is continued, the pin P passes through the main passage portions A3b and B3b and reaches the fully closed position portions A2 and B2 in both the first stay 22 and the second stay 32. As described above, when the user manually closes the collapsible window 4, the pin P is moved by the closing limiting portion 25b without performing a special operation such as directly tilting the first stay 22. Interference is avoided and it can be naturally fully closed.

[Negative pressure suddenly increases and closes suddenly after a gentle negative pressure is generated]
As shown in FIG. 9A, when a railroad vehicle with the foldable window 4 fully open enters the tunnel, a small negative pressure is initially generated on the outside of the foldable window 4, and then the negative pressure rapidly increases. In some cases, a phenomenon occurs. That is, when a railroad vehicle passes through a tunnel, a force that causes the foldable window 4 to start closing gently and then suddenly closes may act on the foldable window 4. In that case, when the fully open collapsible window 4 starts to close at a slow speed, the pin P on the first stay 22 side enters the introduction passage portion A3a (FIG. 7 (B)), but the second stay 32 side. Pin P stays in the region R2 because the region R2 is long, and does not reach the introduction passage portion B3a. That is, the length L2 (FIG. 5 (B)) from the fully open position portion B1 in the guide groove 35 of the second stay 32 to the introduction passage portion B3a is the introduction passage from the fully open position portion A1 in the guide groove 25 of the first stay 22. Since it is longer than the length to the portion A3a (zero in FIG. 5A), the pin P remains in the portion on the fully open position portion B1 side of the introduction passage portion B3a in the region R2 and does not enter the introduction passage portion B3a.

After that, when the negative pressure suddenly increases, as shown in FIG. 9B, the pin P quickly reaches the closing limiting position portion B4 in the guide groove 35 of the second stay 32 and interferes with the closing limiting portion 35b, which is possible. Sudden closing of the fallen window 4 is properly prevented. Therefore, even when the negative pressure generated when passing through the tunnel exhibits a characteristic of suddenly increasing after being gradually increased at the beginning, the sudden closing operation of the collapsible window 4 is appropriately prevented.

As described above, according to the stopper device 10 having the above-described configuration, the phenomenon that the collapsible window 4 suddenly closes due to the generation of negative pressure when the railway vehicle enters the tunnel can be prevented by the compact configuration, and the user can manually perform the operation. It is possible to improve the operability when closing and operating the collapsible window 4.

The present invention is not limited to the above-described embodiment, and its configuration can be changed, added, or deleted. For example, instead of fixing the base members 21 and 31 to the window frame 1 and connecting the stays 22 and 32 to the foldable window 4, the base member is fixed to the foldable window 4 and the stay is connected to the window frame 1. It may be configured to be used. Further, instead of providing the base members 21 and 31 with pins P and providing guide grooves 25 and 35 in the stays 22 and 32, the base member may be provided with guide grooves and the stays may be provided with pins.

1 Window frame 4 Foldable window 10 Stopper device 11 1st stopper unit 12 2nd stopper unit 21 1st base member 22 1st stay 23,33 Rotating shaft 24 Plate 25,35 Guide groove 25a, 35a Opening limit 25b, 35b Closed restriction part 26, 36 Shaft support hole 31 Second base member 32 Second stay A1, B1 Fully open position part A2, B2 Fully closed position part A3, B3 Pin passage part A3a, B3a Introduction passage part A3b, B3b Main passage part A4 , B4 Closed limit position P pin

Claims (5)

It is a device that limits the operation of collapsible windows that are tilted with respect to the window frame of a railroad vehicle and opened and closed.
At least one base member fixed to one member consisting of the window frame or the folding window, and
It comprises at least one stay that is rotatably connected to the window frame or another member of the folding window.
One of the base member or the stay has a pin and
The base member or the other of the stays has a guide groove through which the pin is inserted.
The guide groove
With the fully open position where the pin is located with the foldable window fully open,
With the fully closed position where the pin is located with the foldable window fully closed,
A pin passage portion connecting the fully closed position portion and the fully open position portion,
It is arranged closer to the fully open position portion than the fully closed position portion, faces the fully open position portion from the fully closed position portion side at an angle different from the pin passage portion, and tilts the collapsible window. It has a closed restriction position portion provided along the locus of movement of the stay accompanying the stay.
The inner peripheral edge of the guide groove has a closed limiting portion that faces the fully open position portion so as to define the closed limiting position portion and interferes with the pin that has moved from the fully open position portion to the closed limiting position portion. ,
The pin passage portion includes an introduction passage portion extending in a direction different from the closing restriction position portion from a region on the side of the fully open position portion of the guide groove, and the introduction passage portion is fully closed. Including the main passage that connects to the position
In the introduction passage portion, when the foldable window starts to be closed from the fully open state and the pin moves from the fully open position portion, the stay moves downward in the vertical direction with respect to the base member by its own weight. A folding window stopper device for railroad vehicles, which is formed in the direction in which the pin enters from the area. According to claim 1, the angle formed by the center line connecting the center of the fully open position portion and the center of the closed restriction position portion and the center line of the introduction passage portion is narrow toward the fully closed position portion side. Foldable window stopper device for railroad vehicles described. 2. The angle formed by a perpendicular line orthogonal to the center line connecting the center of the fully open position portion and the center of the closed restriction position portion and the extending direction of the introduction passage portion is 10 ° to 30 °. Foldable window stopper device for railroad vehicles described in. The folding window stopper device for a railway vehicle according to any one of claims 1 to 3, wherein the closing restriction portion has a concave shape along the outer peripheral surface of the pin. The at least one base member includes a first base member fixed to the first side surface of the one member and a second base member fixed to the second side surface of the one member.
The at least one stay includes a first stay rotatably connected to the first side surface of the other member and a second stay rotatably connected to the second side surface of the other member.
The length from the fully open position portion to the closed limit position portion in the guide groove of the first stay is shorter than the length from the fully open position portion to the closed limit position portion in the guide groove of the second stay. ,
The length from the fully open position portion to the introduction passage portion in the guide groove of the second stay is longer than the length from the fully open position portion to the introduction passage portion in the guide groove of the first stay. Item 4. The folding window stopper device for a railway vehicle according to any one of Items 1 to 4.

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