Regulation device

Abstract

To provide a regulation device capable of improving operability when a user performs closing operation while ensuring the reliability of a function for regulating the closing operation when a negative pressure acts.SOLUTION: When closing operation of an inward folding window 70 is generated by the action of negative pressure due to entrance into a tunnel because a latch 130 is arranged at a lowered position due to its own weight to make a protrusion part 112 face a second opposing surface 136b in a state in which the inward folding window 70 is fully open, the closing operation of the inward folding window 70 can be regulated by contact between the protrusion part 112 and the second opposing surface 136b. Namely, the reliability of a function for regulating the closing operation can be ensured because the closing operation can be regulated regardless of an operating speed. When a user performs closing operation, the inward folding window 70 can be slowly closed and quickly closed. Therefore, the operability of the closing operation can be improved.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a regulating device, and more particularly to a regulating device that can improve the operability when a user performs a closing operation while ensuring the reliability of a function of regulating a closing operation when a negative pressure is applied.

Background Art

[0002] There is known a regulating device disposed in a gap between a window frame of a railway vehicle and a collapsible window 4 (an inward folding window) whose upper part falls toward the passenger compartment side and opens, and that regulates the closing operation of the collapsible window 4 (Patent Document 1).

[0003] According to the regulating device of Patent Document 1, when the collapsible window 4 is quickly moved in the closing direction due to the action of negative pressure accompanying entry into a tunnel, before the stay 22 descends by its own weight, the pin P is moved from the fully open position portion A1 to the closing limit position portion A4 and interferes with the closing limit portion 25b. As a result, the collapsible window 4 is restricted from being suddenly closed.

[0004] On the other hand, when the collapsible window 4 is gently moved in the closing direction by the operation of the user, the stay 22 descends by its own weight during the gentle movement, and the pin P is moved to the introduction passage portion A3a instead of the closing limit position portion A4. As a result, the collapsible window 4 can be closed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the conventional technology described above, the guide groove 25 that serves as the passage for the pin P is branched, and the destination of the movement of the pin P is determined according to the operating speed of the collapsible window 4 in the closing direction. Therefore, when the negative pressure associated with entry into the tunnel acts, depending on the manner in which the negative pressure acts, the pin P may move to the introduction passage portion A3a instead of the closing limit position portion A4. That is, whether the collapsible window 4 is restricted or allowed to move in the closing direction depends on the operating speed of the collapsible window 4 in the closing direction. Therefore, there is a problem that the operation is unstable and the reliability of the function for restricting the closing operation when the negative pressure acts is low.

[0007] Also, when the user closes the collapsible window 4, it is necessary to gently operate the collapsible window 4 in the closing direction. If a user who does not know the operation method hurriedly operates the collapsible window 4 in the closing direction, the closing is restricted. Therefore, there is a problem that the operability when the user performs the closing operation is poor.

[0008] The present invention has been made to solve the above-described problems, and an object thereof is to provide a regulating device that can improve the operability when the user performs the closing operation while ensuring the reliability of the function for restricting the closing operation when the negative pressure acts.

Means for Solving the Problem

[0009] To achieve this object, the regulating device of the present invention is configured to be able to regulate the closing operation of an inward folding window whose upper part falls toward the passenger compartment side and opens with respect to the window frame of a railway vehicle. It is attached to the side surface of the inward folding window and has a protruding means that protrudes toward the inner surface side of the window frame, and is attached to the inner surface of the window frame and is displaceable between a lowered position that interferes with the locus of the protruding means as the inward folding window opens and closes and a raised position that does not interfere with the locus of the protruding means as the inward folding window opens and closes. The displacement means is configured to be displaceable at least by its own weight from the raised position to the lowered position, and includes a first opposing portion that faces the protruding means of the inward folding window in the fully closed state when the displacement means is at least in the lowered position, and a second opposing portion that faces the protruding means of the inward folding window in the fully open state when the displacement means is at least in the lowered position. When the opening operation of the inward folding window in the fully closed state is performed, the protruding means is slid along the first opposing portion, and the displacement means is lifted from the lowered position to the raised position, thereby allowing the opening operation of the inward folding window. When the closing operation of the inward folding window in the fully open state is performed, the protruding means abuts against the second opposing portion, and the displacement means is maintained in the lowered position, thereby regulating the closing operation of the inward folding window.

Effect of the Invention

[0010] According to the regulating device described in claim 1, there are protruding means attached to the side surface of the inward-opening window and protruding toward the inner surface side of the window frame, and displacement means attached to the inner surface of the window frame and configured to be displaceable between a lowered position that interferes with the locus of the protruding means as the inward-opening window opens and closes and a raised position that does not interfere with the locus of the protruding means as the inward-opening window opens and closes, and further configured to be displaceable from the raised position to the lowered position at least by its own weight. The displacement means includes a first opposing portion that faces the protruding means of the inward-opening window in the fully closed state when the displacement means is at least in the lowered position, and a second opposing portion that faces the protruding means of the inward-opening window in the fully open state when the displacement means is at least in the lowered position. When the opening operation of the inward-opening window in the fully closed state is performed, the protruding means is slid along the first opposing portion, and the displacement means is lifted from the lowered position to the raised position, thereby allowing the opening operation of the inward-opening window. When the closing operation of the inward-opening window in the fully open state is performed, the protruding means abuts against the second opposing portion, and the displacement means is maintained in the lowered position, thereby restricting the closing operation of the inward-opening window.

[0011] When the user opens the inward-opening window in the fully closed state, the user only needs to perform the opening operation of the inward-opening window, and there is no need to separately operate the displacement means. Therefore, the opening operation of the inward-opening window can be easily performed.

[0012] In this case, when the inward-opening window is opened to the fully open state, the displacement means is displaced from the raised position to the lowered position at least by its own weight, and a state is formed in which the protruding means faces the second opposing portion. Therefore, when the closing operation of the inward-opening window in the fully open state is performed, the protruding means abuts against the second opposing portion, and the closing operation of the inward-opening window is restricted. That is, the closing operation of the inward-opening window in the fully open state can be restricted regardless of its operating speed. For example, when negative pressure acts due to entry into a tunnel, the inward-opening window can be reliably restricted from closing regardless of the manner in which the negative pressure acts. Therefore, the reliability of the function of restricting the closing operation can be ensured.

[0013] Also, when the user closes the inward folding window in the fully open state, if the displacement means is lifted to the raised position, the user can perform the closing operation of the inward folding window regardless of its operating speed. For example, the user can close the inward folding window gently or in a hurry. Therefore, the operability of the closing operation can be improved.

[0014] According to the regulating device described in claim 2, the displacement means includes a third opposing portion that faces the protruding means of the inward folding window in the fully open state when the displacement means is in a closable position where it is displaced by at least a predetermined distance from the lowered position. When the closing operation of the inward folding window in the fully open state is performed while the displacement means is in the closable position, the protruding means is slid along the third opposing portion, and the displacement means is lifted from the closable position to the raised position, thereby allowing the closing operation of the inward folding window.

[0015] Therefore, in addition to the effect achieved by the regulating device described in claim 1, the following effect is achieved. When the user closes the inward folding window in the fully open state, the user only needs to displace the displacement means to the closable position and then perform only the closing operation of the inward folding window, eliminating the need to separately operate the displacement means. That is, it is possible to eliminate the need to lift the displacement means to the raised position, and after the protruding means abuts against the third opposing portion, one hand can be released from the displacement means, and only the closing operation of the inward folding window can be performed with the other hand (or both hands), thus improving the operability of the closing operation.

[0016] According to the regulating device described in claim 3, in addition to the effect achieved by the regulating device described in claim 2, a guiding means is provided to guide the displacement of the displacement means, and the displacement means is guided by the guiding means so as to be displaceable along the vertical direction at least between the lowered position and the raised position. Therefore, by utilizing the self-weight of the displacement means, it is possible to easily displace the displacement means from the raised position to the lowered position.

[0017] According to the regulating device described in claim 4, in addition to the effect achieved by the regulating device described in claim 3, the distance between the outer vehicle side surface facing the outside of the vehicle inside the object to be regulated and the guiding surface of the guiding means for guiding the outer vehicle side surface is widened as it goes from the lower vertical direction to the upper vertical direction. In a state where the displacement means is in the lowered position, when the outer vehicle side surface inside the object to be regulated and the guiding surface of the guiding means are brought into contact, the displacement means is displaced to the closable position, so that the operation of displacing the displacement means to the closable position can be facilitated.

[0018] According to the regulating device described in claim 5, in addition to the effect achieved by the regulating device described in claim 4, the displacement means includes a handle portion extending toward the passenger compartment side, and at least the tip side of the handle portion is located on the passenger compartment side of the inward folding window in the fully open state. Therefore, by operating the handle portion, it is not necessary to insert a hand between the window frame and the inward folding window. Further, by lifting the handle portion, the upper part of the displacement means can be tilted outward. That is, the operation of displacing the displacement means to the closable position can be facilitated.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0020] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1(a) is a front view of the window frame 30 and the folding-in window 70 to which the regulating device 100 in the first embodiment is attached, and the state viewed from the passenger compartment Rm side of the railway vehicle 1 is shown. FIGS. 1(b) and 1(c) are partial enlarged cross-sectional views of the window frame 30 and the folding-in window 70 along line Ib-Ib of FIG. 1(a). In FIG. 1(b), the fully closed state of the folding-in window 70 is shown, and in FIG. 1(c), the fully open state of the folding-in window 70 is shown, respectively. In FIGS. 1(b) and 1(c), the cross-sectional lines of the folding-in window 70 and the fixed window 50 are omitted.

[0021] As shown in FIG. 1, a window frame 30 having a rectangular shape in front view is disposed on the side structure of the railway vehicle 1, and a partition frame 31 for vertically partitioning the window opening surrounded by the window frame 30 is disposed on the window frame 30. The partition frame 31 extends in the longitudinal direction of the railway vehicle 1 (the left-right direction in FIG. 1(a)). The lower window opening of the partition frame 31 is closed by the fixed window 50, and the upper window opening of the partition frame 31 can be opened and closed by the folding-in window 70.

[0022] The folding-in window 70 is configured as a folding-in type window that opens with the upper part falling toward the passenger compartment Rm side. That is, the lower part of the folding-in window 70 is pivotally supported on the window frame 30 via a support shaft 71 along the longitudinal direction of the railway vehicle 1 (the direction perpendicular to the paper surface in FIGS. 1(b) and 1(c)), and a gripping portion 72 that a user grips and operates when opening and closing the folding-in window 70 is disposed on the upper part of the folding-in window 70.

[0023] The gripping part 72 is configured to be operable between an engaged position engaged with the window frame 30 and a released position where the engagement is released. When the user operates the gripping part 72 from the engaged position to the released position and pulls it into the passenger compartment Rm side, the folding window 70 is rotated (tilted) about the support shaft 71, and an opening operation is performed. When the opening operation is restricted by the stay 73, the folding window 70 is maintained in the fully open state (see Fig. 1(c)).

[0024] A restricting device 100 is disposed in a gap between the side surface 70a of the folding window 70 (see Fig. 2) and the inner surface 30a of the window frame 30. The restricting device 100 includes a window-side member 110 (see Fig. 2) attached to the side surface 70a of the folding window 70, a catch 130 and a guide member 150 attached to the inner surface 30a of the window frame 30, and is configured to be able to restrict the closing operation of the folding window 70 by causing the window-side member 110 to interfere with the catch 130.

[0025] Referring to Fig. 2, the window-side member 110 will be described. Fig. 2(a) is a partially enlarged front view of the folding window 70, and Fig. 2(b) is a partially enlarged side view of the folding window 70 as viewed in the direction of arrow IIb in Fig. 2(a).

[0026] As shown in Fig. 2, the window-side member 110 includes a mounting plate portion 111 formed in a flat plate shape and a cylindrical protruding portion 112 protruding from the mounting plate portion 111. The mounting plate portion 111 is attached to the side surface 70a of the folding window 70 by a socket head cap screw CS. In this attached state, the protruding portion 112 is in a posture substantially parallel to the support shaft 71 (a posture with the axial direction along the longitudinal direction of the railway vehicle 1 (the left-right direction in Fig. 2(a))).

[0027] The window-side member 110 is configured such that the protruding portion 112 protrudes toward the inner surface 30a side of the window frame 30 more than the side surface 70a of the folding window 70, and the outer peripheral surface of the protruding portion 112 can be made to interfere (contact) with the catch 130 (interference portion 136) when the folding window 70 is opened and closed (see Figs. 6 and 7).

[0028] Referring to FIG. 3, the latch 130 and the guide member 150 will be described. FIG. 3(a) is a partially enlarged view of the inner surface 30a of the window frame 30, and FIG. 3(b) is a partially enlarged cross-sectional view of the window frame 30 taken along line IIIb-IIIb of FIG. 3(a). In FIG. 3(a), the inwardly folding window 70 in the fully open state and the fully closed state is schematically illustrated using a two-dot chain line respectively, and in FIG. 3(b), the inwardly folding window 70 in the fully closed state is schematically illustrated using a two-dot chain line.

[0029] As shown in FIG. 3, a guide member 150 is attached to the inner surface 30a of the window frame 30. The guide member 150 holds the latch 130 and guides the displacement of the latch 130 (defines the displaceable range).

[0030] The latch 130 is displaceable between a lowered position (see FIGS. 5(a) and 5(b)) that interferes with the locus of the protrusion 112 as the inwardly folding window 70 opens and closes and a raised position that does not interfere with the locus of the protrusion 112 as the inwardly folding window 70 opens and closes, and is displaceable (lowered) by its own weight from the raised position to the lowered position.

[0031] Note that the lowered position is defined as the position where the lower surface 134a of the connection portion 134 of the latch 130 is supported by the upper surface 151b of the screw seat 151 in the guide member 150 (i.e., the position shown in FIG. 3(a)), and the raised position is defined as the position that is the most vertically upward within the range where the latch 130 is lifted by the protrusion 112 (see FIG. 6(c)).

[0032] Referring to FIG. 4, the latch 130 will be described. FIG. 4(a) is a front view of the latch 130, FIG. 4(b) is a cross-sectional view of the latch 130 taken along line IVb-IVb of FIG. 4(a), and FIG. 4(c) is a side view of the latch 130 viewed in the direction of arrow IVc of FIG. 4(a).

[0033] As shown in Fig. 4(a), the latch 130 includes a base portion 131 extending in the horizontal direction, a guided portion 132 and a standing portion 133 extending upward from one end side (right side in Fig. 4(a)) and the other end side (left side in Fig. 4(a)) of the base portion 131, a connecting portion 134 connecting the upper ends of the guided portion 132 and the standing portion 133, a handle portion 135 extending from one end side of the base portion 131 toward the passenger compartment Rm, and an interference portion 136 protruding from the front surface of the base portion 131.

[0034] The base portion 131, the guided portion 132, the standing portion 133, the connecting portion 134, and the handle portion 135 are formed from a single plate material, and these portions 131 to 135 are located in the same plane. However, the tip side (opposite side to the base portion 131) of the handle portion 135 is formed by bending and faces the outer surface (the surface on the passenger compartment Rm side) of the decorative panel 32 (see Fig. 3(b)) disposed on the window frame 30.

[0035] The guided portion 132 is a portion guided by a guide member 150 (see Fig. 5), and the width dimension of the guided portion 132 (the interval between the vehicle compartment side surface 132a facing the passenger compartment Rm and the vehicle exterior side surface 132b facing the outside of the vehicle Out) is configured to become smaller as it goes upward in the vertical direction. That is, the width dimension W1 of the upper end side (the connecting portion 134 side) of the guided portion 132 is made smaller than the width dimension W2 of the lower end side (the base portion 131 side) of the guided portion 132 (W1 < W2).

[0036] In the present embodiment, the vehicle compartment side surface 132a is formed as a flat surface orthogonal to the lower surface 134a of the connecting portion 134, and the vehicle exterior side surface 132b is formed as a flat surface approaching the vehicle compartment side surface 132a as it goes upward in the vertical direction.

[0037] At least the tip side of the handle portion 135 is located on the passenger compartment Rm side of the inward folding window 70 in the fully open state (see Fig. 1(c)). Therefore, by operating the handle portion 135, the latch 130 can be displaced to the raised position or the closable position (see Fig. 7(b)) described later, and it is not necessary for the user to insert a hand between the window frame 30 and the inward folding window 70 to displace the latch 130.

[0038] The interference part 136 is a part formed by a plate material having a substantially pentagonal shape in front view, which is welded and fixed to the front of the base part 131, and includes a first opposing surface 136a, a second opposing surface 136b, and a third opposing surface 136c.

[0039] The first opposing surface 136a is formed as a flat surface that approaches the passenger compartment Rm (second opposing surface 136b) side as it goes downward in the vertical direction, and the second opposing surface 136b is formed as a flat surface along the vertical direction (a flat surface orthogonal to the lower surface 134a of the connecting part 134). The third opposing surface 136c connects the first opposing surface 136a and the second opposing surface 136b, and is formed as a flat surface that approaches the outside of the vehicle Out (first opposing surface 136a) side as it goes downward in the vertical direction.

[0040] The first opposing surface 136a faces the protruding part 112 of the folding window 70 in the fully closed position when the latch 130 is in the lowered position (see FIGS. 3(a) and 5(a)), and the second opposing surface 136b faces the protruding part 112 of the folding window 70 in the fully open position when the latch 130 is in the lowered position (see FIGS. 3(a) and 5(d)). The third opposing surface 136c faces the protruding part 112 of the folding window 70 in the fully open position when the latch 130 is in the closable position described later (see FIG. 7(b)).

[0041] Note that the first opposing surface 136a, the second opposing surface 136b, or the third opposing surface 136c facing the protruding part 112 means that the first opposing surface 136a, the second opposing surface 136b, or the third opposing surface 136c is at a position where it intersects the trajectory of the protruding part 112 when the folding window 70 is opened and closed.

[0042] Referring to FIG. 5, the guide member 150 will be described. FIGS. 5(a) and 5(b) are partial enlarged views of the inner surface 30a of the window frame 30, and FIG. 5(c) is a partial enlarged cross-sectional view of the window frame 30 taken along the line Vc-Vc in FIG. 5(a). Note that in FIG. 5(b), a state where the presser 153 of the guide member 150 is removed is shown.

[0043] As shown in FIG. 5, the guide member 150 includes a pair of screw seats 151 and 152 and a retainer 153, and holds the hinge 130 so as to be slidable in the vertical direction by the guide surfaces 151a and 152a of the screw seats 151 and 152, the back surface of the retainer 153, and the inner surface 30a of the window frame 30.

[0044] The screw seats 151 and 152 are attached to the inner surface 30a of the window frame 30 by a plurality of (two each in this embodiment) rivets RV. The retainer 153 is attached to the front surfaces of the screw seats 151 and 152 by socket head cap screws CS.

[0045] The guide surfaces 151a and 152a are parallel to each other and are formed as flat surfaces orthogonal to the upper surface 151b of the screw seat 151, respectively. Further, the opposing interval between the guide surfaces 151a and 152a is made the same as or slightly larger than the width dimension W2 (see FIG. 4(a)) on the lower end side of the guided portion 132.

[0046] Therefore, in a state where the lower surface 134a of the connecting portion 134 of the hinge 130 is supported (abutted) on the upper surface 151b of the screw seat 151 (that is, in a state where the hinge 130 is in the lowered position), the guide surface 152a and the vehicle compartment side surface 132a of the guided portion 132 of the hinge 130 are parallel, while the guide surface 151a and the vehicle exterior side surface 132b of the guided portion 132 of the hinge 130 are non-parallel.

[0047] That is, in a state where the hinge 130 is at least in the lowered position, the interval between the vehicle exterior side surface 132b of the guided portion 132 of the hinge 130 and the guide surface 151a of the screw seat 151 becomes wider from the lower side in the vertical direction toward the upper side in the vertical direction. Thereby, it is possible to incline the hinge 130 so that the vehicle exterior side surface 132b of the guided portion 132 abuts on the guide surface 151a of the screw seat 151 (see FIG. 7(b)).

[0048] Note that, since the opposing intervals of the guide surfaces 151a and 152a are made larger than the width dimension W1 of the guided portion 132, the latch 130 can be displaced in the horizontal direction (the left - right direction in FIGS. 5(a) and 5(b)) while maintaining its state when in the lowered position (the state where the lower surface 134a of the latch 130 is in contact with the upper surface 151b of the screw seat 151).

[0049] In the present embodiment, even when the latch 130 in the lowered position is displaced to either the vehicle interior Rm side or the vehicle exterior Out side, the protruding portion 112 of the folding window 70 in the fully - open state faces the second opposing surface 136b, and the second opposing surface 136b is arranged on the vehicle exterior Out side with respect to the virtual plane including the axis of the support shaft 71 and extending along the vertical direction.

[0050] Referring to FIG. 6, the opening operation of the folding window 70 will be described. FIGS. 6(a) to 6(d) are state transition diagrams of the regulating device 100 accompanying the opening operation of the folding window 70, and the transitions when the folding window 70 is opened from the fully - closed state to the fully - open state are illustrated.

[0051] As shown in FIG. 6(a), when the folding window 70 is in the fully - closed state, the protruding portion 112 of the window side member 110 faces the first opposing surface 136a of the latch 130. A predetermined interval is provided between the protruding portion 112 and the first opposing surface 136a, and the latch 130 is maintained in the lowered position by its own weight.

[0052] When the opening operation of the folding window 70 is performed, the protruding portion 112 comes into contact with the first opposing surface 136a. Since the first opposing surface 136a is inclined downward toward the vehicle interior Rm side, when the opening operation of the folding window 70 is further performed, as shown in FIG. 6(b), the protruding portion 112 slides along the first opposing surface 136a, and the latch 130 is lifted from the lowered position.

[0053] In addition, in the present embodiment, the handle 130 includes the standing portion 133, whereby the center of gravity of the handle 130 is positioned at the guided portion 132. That is, the handle 130 is configured such that the weight of the portion (handle portion 135) on the vehicle interior Rm side of the guided portion 132 and the weight of the portion on the vehicle exterior Out side of the guided portion 132 are balanced. Therefore, it is possible to easily raise the handle 130 vertically upward from the lowered position.

[0054] As shown in FIG. 6(c), when the protruding portion 112 reaches the end of the first opposing surface 136a (the boundary with the third opposing surface 136c), the handle 130 is disposed at the raised position. In a state where the handle 130 is disposed at the raised position, the lower surface of the guide member 150 and the upper surfaces of the base portion 131 and the handle portion 135 of the handle 130 face each other with a predetermined interval therebetween, and the handle 130 can be lifted further vertically upward from the raised position by the amount of the predetermined interval.

[0055] From the state shown in FIG. 6(c), when the folding window 70 is further opened, and as shown in FIG. 6(d), when the folding window 70 is fully opened, the handle 130 is disposed at the lowered position by its own weight, and the protruding portion 112 faces the second opposing surface 136b.

[0056] As described above, since the handle 130 is guided by the guide member 150 so as to be slidably displaced along the vertical direction, it is possible to easily displace the handle 130 from the raised position to the lowered position by using the own weight of the handle 130, and it is also possible to easily maintain the handle 130 at the lowered position.

[0057] As described above, when the user opens the folding window 70 in the fully closed state, the user only needs to perform the opening operation of the folding window 70, and there is no need to separately operate the handle 130. Therefore, the opening operation of the folding window 70 can be easily performed.

[0058] Referring to FIG. 7, the closing operation of the folding window 70 will be described. FIGS. 7(a) to 7(d) are state transition diagrams of the regulating device 100 accompanying the closing operation of the folding window 70, and the transitions when the closing operation of the folding window 70 is performed from the fully open state to the fully closed state are illustrated.

[0059] As shown in FIG. 7(a), in the state where the folding window 70 is in the fully open state, the protruding portion 112 of the window side member 110 faces the second opposing surface 136b of the latch 130. A predetermined interval is provided between the protruding portion 112 and the second opposing surface 136b, and the latch 130 is maintained in the lowered position by its own weight.

[0060] In the state shown in FIG. 7(a), when the closing operation of the folding window 70 occurs due to the action of the negative pressure accompanying the entry into the tunnel, the protruding portion 112 comes into contact with the second opposing surface 136b. As described above, the second opposing surface 136b is a flat surface along the vertical direction and is located above the vertical direction of the support shaft 71. Therefore, even when the second opposing surface 136b is pressed by the protruding portion 112, the generation of the force component in the direction of lifting the latch 130 is suppressed. Thus, the closing of the folding window 70 can be regulated.

[0061] That is, according to the regulating device 100, the closing operation of the folding window 70 in the fully open state can be regulated regardless of its operating speed (not only when the folding window 70 moves quickly in the closing direction but also when it moves slowly). Thus, when the negative pressure accompanying the entry into the tunnel acts, the closing of the folding window 70 can be reliably regulated regardless of the manner of action of the negative pressure. Therefore, the reliability of the function of regulating the closing operation can be ensured.

[0062] When the user performs the closing operation of the folding window 70 in the fully open state, first, the latch 130 is arranged at a closable position, and then the closing operation of the folding window 70 is performed.

[0063] In addition, the placement of the latch 130 at the closable position can be easily performed only by operating the handle portion 135 without the need for the user to visually confirm the height position of the latch 130 while operating. That is, as described above, since the interval between the guide surface 151a and the outer vehicle side surface 132b becomes wider toward the upper side in the vertical direction (see Fig. 5(b)), by pushing the handle portion 135 into the outer side of the vehicle (left side in Fig. 7(a)) and slightly lifting it, with the lower end of the guide surface 151a of the guide member 150 (see Fig. 5(b)) as a fulcrum, the upper part of the latch 130 is tilted to the outer side of the vehicle, and the outer vehicle side surface 132b of the guided portion 132 comes into contact with the guide surface 151a of the guide member 150. As a result, as shown in Fig. 7(b), the latch 130 is placed at the closable position.

[0064] In addition, in the present embodiment, the latch 130 includes a standing portion 133. Therefore, when the handle portion 135 of the latch 130 in the lowered position is slightly lifted, due to the weight of the standing portion 133, the latch 130 can be easily tilted to the outer side of the vehicle. Therefore, the operation of displacing the latch 130 to the closable position can be easily performed.

[0065] As shown in Fig. 7(b), when the latch 130 is placed at the closable position and the folding window 70 is in the fully open state, the protruding portion 112 faces the third opposing surface 136c. A predetermined interval is provided between the protruding portion 112 and the third opposing surface 136c.

[0066] When the closing operation of the folding window 70 is performed, the protruding portion 112 comes into contact with the third opposing surface 136c. As a result, since the latch 130 is supported by the protruding portion 112, the user can release the hand from the handle portion 135.

[0067] Since the third opposing surface 136c is inclined downward toward the outer side of the vehicle, when the closing operation of the folding window 70 is further performed, as shown in Fig. 7(c), the protruding portion 112 is slid along the third opposing surface 136c, and the latch 130 is lifted from the closable position.

[0068] When the protrusion 112 reaches the end of the third opposing surface 136c (the boundary with the first opposing surface 136a), the latch 130 is disposed at the raised position (the position that is the highest in the vertical direction within the range where the latch 130 is lifted by the protrusion 112) (see Fig. 6(c)).

[0069] The closing operation of the folding window 70 is further performed. As shown in Fig. 7(d), when the folding window 70 is in the fully closed state, the latch 130 is disposed at the lowered position due to its own weight, and the protrusion 112 faces the first opposing surface 136a.

[0070] In this way, when the user performs the closing operation of the folding window 70 in the fully open state, the user can operate the latch 130 to the closable position, and then only perform the closing operation of the folding window 70, eliminating the need to separately operate the latch 130. That is, it is possible to eliminate the need to lift the latch 130 to the raised position. After the protrusion 112 abuts against the third opposing surface 136c, one hand can be released from the latch 130 (handle portion 135), and the closing operation of the folding window 70 can be performed with the other hand (or both hands). Thereby, the operability of the closing operation can be improved.

[0071] Next, referring to Fig. 8, the restricting device 200 in the second embodiment will be described. In the first embodiment, the case where the latch 130 is slidably guided by the guide member 150 was described. However, the latch 230 in the second embodiment is pivotally supported by the guide member 250 so as to be rotatable. Note that the same components as those described in the first embodiment are denoted by the same reference numerals and their description is omitted.

[0072] Fig. 8(a) is a partially enlarged view of the inner surface 30a of the window frame 30 to which the latch 230 of the restricting device 200 in the second embodiment is attached, and Fig. 8(b) is a partially enlarged cross-sectional view of the window frame 30 along line VIIIb-VIIIb of Fig. 8(a). In Fig. 8(a), the folding window 70 in the fully open state and the fully closed state are schematically illustrated using two-dot chain lines, respectively. In Fig. 8(b), the folding window 70 in the fully closed state is schematically illustrated using a two-dot chain line.

[0073] As shown in FIG. 8, the latch 230 of the regulating device 200 in the second embodiment is attached to the inner surface 30a of the window frame 30, similarly to the latch 130 of the regulating device 100 in the first embodiment, and is displaceable (rotatable) between a lowered position (the state shown in FIG. 8(a)) that interferes with the locus of the protruding portion 112 as the folding window 70 opens and closes and a raised position (not shown) that does not interfere with the locus of the protruding portion 112 as the folding window 70 opens and closes, and is rotatable (lowered) by its own weight from the raised position to the lowered position.

[0074] The latch 230 includes a base portion 231, a handle portion 235 extending from one end side (the right side in FIG. 8(a)) of the base portion 231 toward the passenger compartment Rm side, and an interference portion 136 protruding from the front surface of the base portion 231. The base portion 231 and the handle portion 235 are formed from a single plate material, and these portions 231, 235 are positioned in the same plane.

[0075] The guide member 250 includes a cylindrical shaft portion and an overhanging portion that protrudes in a flange shape radially outward from the outer peripheral surface of the shaft portion. A circular hole is opened in the base portion 231 of the latch 230, and the latch 230 is rotatably supported by the shaft portion of the guide member 250 inserted through the hole in the base portion 231. Further, the overhanging portion has a larger diameter than the inner diameter of the hole in the base portion 231, and the detachment of the base portion 231 (latch 230) is regulated.

[0076] Note that the guide member 250 is attached to the inner surface 30a of the window frame 30 by a rivet RV. Also, in this attached state, the shaft portion of the guide member 250 is in a posture substantially parallel to the support shaft 71 (a posture in which the axial direction is along the longitudinal direction of the railway vehicle 1 (the left - right direction in FIG. 2(a))).

[0077] The rotation center of the latch 230 (the position pivotally supported by the guide member 250) is eccentrically located on the other end side of the base portion 231 (the side opposite to the side where the handle portion 235 is connected, i.e., the outside of the vehicle Out side), and is set at a position outside the vehicle Out side of the interference portion 136. Also, the rotation center of the latch 230 is set at a position vertically above the interference portion 136 and the handle portion 235. Therefore, by utilizing the weights of the base portion 231, the interference portion 136, and the handle portion 235, the latch 230 can be easily rotated (lowered) toward the lowered position by its own weight and can be easily maintained in the lowered position. Note that the latch 230 is maintained in the lowered position by abutting against a stopper (not shown).

[0078] The positional relationship between the interference portion 136 (each opposing surface 136a to 136c) and the support shaft 71 of the folding window 70 is the same as in the case of the first embodiment. That is, the first opposing surface 136a faces the protruding portion 112 of the folding window 70 in the fully closed position in a state where the latch 230 is in the lowered position, and the second opposing surface 136b faces the protruding portion 112 of the folding window 70 in the fully open position in a state where the latch 230 is in the lowered position. The third opposing surface 136c faces the protruding portion 112 of the folding window 70 in the fully open position in a state where the latch 230 is in the closable position.

[0079] According to the restricting device 200 in the second embodiment, when the opening operation of the folding window 70 in the fully closed position is performed, the protruding portion 112 is slid along the first opposing surface 136a, and the latch 230 is lifted from the lowered position (rotated counterclockwise in FIG. 8(a)). When the opening operation of the folding window 70 is further performed and the protruding portion 112 passes through the third opposing surface 136c, the latch 230 is arranged in the lowered position by its own weight, and the protruding portion 112 of the folding window 70 in the fully open state faces the second opposing surface 136b.

[0080] Therefore, also in the restricting device 200 of the second embodiment, when the user opens the folding window 70 in the fully closed state, the user only needs to perform the opening operation of the folding window 70, and there is no need to separately operate the latch 230. Therefore, the opening operation of the folding window 70 can be easily performed.

[0081] When the folding window 70 is in the fully open state, the protruding portion 112 faces the second opposing surface 136b of the latch 230. Therefore, when an unintended closing operation of the folding window 70 occurs due to the action of negative pressure accompanying entry into the tunnel, the protruding portion 112 comes into contact with the second opposing surface 136b. Even when the second opposing surface 136b is pressed by the protruding portion 112, the generation of a force component in the direction of lifting the latch 230 is suppressed. Thus, the closing of the folding window 70 can be restricted.

[0082] When the user performs the closing operation of the folding window 70 in the fully open state, first, the latch 230 is placed in the raised position, and then the closing operation of the folding window 70 is performed. The latch 230 is rotated until the handle portion 235 is lifted by the user and abuts against a stopper (not shown), and is thus placed in the raised position (or a position vertically above the raised position).

[0083] As a result, the folding window 70 is brought into the fully closed state. Further, when the user's hand is released from the handle portion 235, the latch 230 is placed in the lowered position by its own weight, and the protruding portion 112 faces the first opposing surface 136a.

[0084] Therefore, also in the restricting device 200 of the second embodiment, when negative pressure accompanying entry into the tunnel acts, the closing of the folding window 70 can be surely restricted regardless of the manner of action of the negative pressure. Further, when the user performs the closing operation, after operating the latch 230 to the raised position with one hand, only the closing operation of the folding window 70 needs to be performed with the other hand, and the operability of the closing operation can be improved.

[0085] As described above, the present invention has been described based on the embodiments. However, it can be easily inferred that the present invention is not limited to the above embodiments at all, and various improvements and modifications are possible without departing from the spirit of the present invention.

[0086] In each of the above embodiments, the case where the latch 130, 230 is displaced to the lowered position by its own weight has been described. However, an elastic spring (biasing means) may be interposed between the window frame 30 and the latch 130, 230 in a state of being elastically deformed, and the elastic restoring force (biasing force) of the elastic spring may be applied in the direction of displacing the latch 130, 230 to the lowered position. By applying the elastic restoring force in addition to the own weight, the latch 130, 230 can be easily displaced to the lowered position and can be easily maintained in the lowered position. Therefore, it is possible to more reliably suppress the latch 130, 230 from rising from the lowered position due to the vibration during the running of the railway vehicle 1.

[0087] Examples of the elastic spring (biasing means) include a coil spring (compression spring, tension spring), a torsion spring, and a leaf spring. In addition, instead of or in addition to the biasing means, the attractive force of a magnet may be applied in the direction of displacing the latch 130, 230 to the lowered position.

[0088] In the first embodiment above, the operation method of performing the closing operation of the folding window 70 after arranging the latch 130 at the closable position has been described. However, other operation methods may be adopted. As another operation method, an operation method of performing the closing operation of the folding window 70 after arranging the latch 130 at the raised position (or a position vertically above the raised position) is exemplified. On the other hand, in the second embodiment above, the operation method of performing the closing operation of the folding window 70 after arranging the latch 230 at the raised position has been described. However, other operation methods may be adopted. As another operation method, an operation method of performing the closing operation of the folding window 70 after arranging the latch 230 at the closable position (the position where the protruding portion 112 of the folding window 70 in the fully open position faces the third opposing surface 136c) is exemplified. In each of the above embodiments, the interference portion 136 of the latch 130, 230 only needs to include the first opposing surface 136a and the second opposing surface 136b, and the third opposing surface 136c may be omitted. That is, the lower side in the vertical direction of the first opposing surface 136a and the lower side in the vertical direction of the second opposing surface 136b may be connected, and the interference portion 136 may be formed in a substantially V-shaped shape when viewed from the front.

[0089] In each of the above embodiments, the configuration in which the interference part 136 is fixed to the bases 131 and 231 by welding has been described, but other fixing methods may be adopted. Examples of other fixing methods include adhesion fixing with an adhesive, fastening fixing with a screw, and caulking fixing with a rivet. In addition, a method of performing cutting on one material to cut out the interference part 136 on the front surface of the bases 131 and 231 may be adopted.

[0090] In the above first embodiment, the configuration in which the outer vehicle side surface 132b of the guided portion 132 of the latch 130 is inclined with respect to the vertical direction has been described. Instead of this, or in addition to this, the guide surface 151a of the guide member 150 (screw seat 151) may be inclined with respect to the vertical direction. That is, any configuration in which the distance between the outer vehicle side surface 132b and the guide surface 151a becomes wider from the lower side in the vertical direction to the upper side in the vertical direction is acceptable.

[0091] In the above first embodiment, the latch 130 only needs to include a portion for holding the interference part 136 (a part of the base 131), a portion guided by the guide member 150 (the guided portion 132), a portion for maintaining the latch 130 in the lowered position (a part of the connection portion 134), and a portion for the user to operate (the handle portion 135). The portions on the outer side of the vehicle Out with respect to the guide member 150 and the interference part 136 (the remaining part of the base 131, the standing portion 133, the remaining part of the connection portion 134) may be omitted.

[0092] In the above second embodiment, a mark indicating the tip position of the handle portion 235 when the latch 230 is disposed at the closable position may be provided on the decorative panel 32. By lifting the handle portion 235 so that the tip position coincides with the mark, the latch 230 can be disposed at the closable position. Therefore, the operability of the user can be improved.

Explanation of Reference Numerals

[0093] 1 Railway vehicle 30 Window frame 30a Inner surface 70 Inner folding window 70a Side surface 100, 200 Regulation device 112 Protrusion (protrusion means) 130, 230 Latch (displacement means) 132 Inside of the case 132b Outer side of the vehicle 135, 235 Handle part 136a First opposing surface (first opposing part) 136b Second opposing surface (second opposing part) 136c Third opposing surface (third opposing part) 150, 250 Guide member (guiding means) 151a Guiding surface Rm Passenger compartment Out Outside of the vehicle

Claims

1. In a regulating device configured to be able to regulate the closing operation of an inward folding window that opens with the upper part falling toward the passenger compartment side with respect to the window frame of a railway vehicle, a protruding means attached to the side surface of the inward folding window and protruding toward the inner surface side of the window frame; a displacement means attached to the inner surface of the window frame, configured to be displaceable between a lowered position that interferes with the locus of the protruding means as the inward folding window opens and closes and a raised position that does not interfere with the locus of the protruding means as the inward folding window opens and closes, and configured to be displaceable at least by its own weight from the raised position to the lowered position, and the displacement means has a first opposing portion that faces the protruding means of the inward folding window in the fully closed state when the displacement means is at least in the lowered position; has a second opposing portion that faces the protruding means of the inward folding window in the fully open state when the displacement means is at least in the lowered position, and when the opening operation of the inward folding window in the fully closed state is performed, the protruding means is slid along the first opposing portion, and the displacement means is lifted from the lowered position to the raised position, thereby allowing the opening operation of the inward folding window; when the closing operation of the inward folding window in the fully open state is performed, the protruding means is brought into contact with the second opposing portion, and the displacement means is maintained in the lowered position, thereby regulating the closing operation of the inward folding window. A regulating device characterized by this.

2. The displacement means includes a third opposing portion that faces the protruding means of the inward folding window in the fully open state when the displacement means is at least in a closable position where the displacement means is displaced by a predetermined distance from the lowered position, when the closing operation of the inward folding window in the fully open state is performed while the displacement means is in the closable position, the protruding means is slid along the third opposing portion, and the displacement means is lifted from the closable position to the raised position, thereby allowing the closing operation of the inward folding window. The regulating device according to Claim 1, characterized by this.

3. The regulating device includes a guiding means configured to be able to guide the displacement of the displacement means, The displacement means is guided by the guiding means so as to be displaceable along the vertical direction at least between the lowered position and the raised position. The regulating device according to Claim 2, characterized by this.

4. The displacement means includes a guided portion guided by the guiding means. The distance between the outer side surface of the object to be guided facing the outside of the vehicle and the guiding surface of the guiding means for guiding the outer side surface becomes wider as it goes from the lower vertical direction to the upper vertical direction. The regulating device according to claim 3, characterized in that, in a state where the displacement means is in the lowered position, the outer side surface of the object to be guided and the guiding surface of the guiding means are brought into contact with each other, so that the displacement means is displaced to the closable position.

5. The displacement means includes a handle portion extending toward the passenger compartment side. The regulating device according to claim 4, characterized in that at least the tip side of the handle portion is located on the passenger compartment side of the inwardly folded window in the fully open state.

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