Side window structure

Abstract

To provide a side window structure of a railway vehicle having high operability and allowing a user to enjoy a scenic roadside scene.SOLUTION: The side window structure 100 includes a window frame 10 provided in a side bodyshell 1 of the railcar, a fixed window side 2A fixed to the window frame 10, at least two movable window side 2B capable of opening and closing an opening of the window frame 10, a moving mechanism 3 that moves the at least two movable window side 2B in conjunction with each other by applying an external force, and a lock mechanism 4 that locks the at least two movable window side 2B at a predetermined position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a side window structure provided on a side structure of a railway vehicle. [Background technology]

[0002] Conventionally, movable windows provided on the side structures of railway vehicles have been known (see, for example, Patent Document 1). The movable windows can be opened and closed by the operation of passengers or the like, and opening the movable windows can ventilate the interior of the vehicle.

[0003] The side window structure described in Patent Document 1 is provided with a canopy that completely covers the opening so that the interior of the vehicle can be ventilated even on rainy days. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-7136 Summary of the Invention [Problem to be solved by the invention]

[0005] Although the side window structure described in Patent Document 1 allows ventilation inside the car when it rains, if a canopy is provided that completely covers the opening, it becomes impossible to naturally enjoy the scenic scenery along the railway line from inside the car through the opening. Also, because there is a limit to the space above and below the car, it is difficult to increase the opening area of ​​the opening with the conventional side window structure, and there is room for improvement in terms of enjoying the scenic scenery along the railway line.

[0006] Therefore, there is a demand for a side window structure for railway vehicles that is easy to operate and allows passengers to enjoy the beautiful scenery along the railway line. [Means for solving the problem]

[0007] The characteristic configuration of the side window structure of the present invention is that it comprises a window frame provided on the side structure of a railway vehicle, a fixed window fixed to the window frame, at least two movable windows that can open and close openings in the window frame, a moving mechanism that moves the at least two movable windows in conjunction with each other when an external force is applied, and a locking mechanism that locks the at least two movable windows in a predetermined position.

[0008] This structure has at least two movable windows that can open and close the opening in the window frame. This makes it possible to secure an opening area that is the sum of the strokes of each window, and it is possible to increase the opening area without glass compared to conventional structures that use only one movable window.

[0009] In addition, when the locking mechanism is unlocked, the moving mechanism moves at least two movable windows in conjunction with each other, thereby improving operability compared to when each movable window is moved individually.

[0010] In this way, the side window structure in this configuration is a side window for a railway vehicle that is highly maneuverable and allows passengers to enjoy the scenic scenery along the railway line.

[0011] Another characteristic feature is that the at least two movable windows include a first movable window and a second movable window that is closer to the fixed window than the first movable window, and the first movable window is positioned above the second movable window.

[0012] In this configuration, the fixed window, second movable window, and first movable window are arranged from the bottom up, so if the top of the fixed window is at armrest height, the entire upper body above the armrest can be made into an open space without glass. As a result, passengers can enjoy the scenic scenery along the line while maximizing their experience of the natural breeze.

[0013] Another characteristic feature is that the moving mechanism has a pair of movable pulleys fixed to both sides of the second movable window, a pair of fixed pulleys fixed to both upper sides of the window frame, wires respectively stretched over the movable pulleys and the fixed pulleys, and a biasing member that pulls the at least two movable windows upward via the wires.

[0014] If the movement mechanism is formed of a movable pulley, a fixed pulley, a wire, and a biasing member as in this configuration, a power source such as a motor is not required, making it possible to reduce power consumption at low cost.

[0015] Another characteristic feature of the locking mechanism is that it has a handle fixed to the center of the top of the first movable window, a pair of rods that can be rotated by operating the handle, and an engaged portion fixed to both sides of the top of the window frame and that can engage with an engaging portion at the tip of the rod.

[0016] With a locking mechanism such as this, it is possible to switch between lock and unlock by operating the handle, so the structure is simple, and because the handle is fixed to the top center of the first movable window, it is highly visible and convenient.

[0017] Another characteristic feature is that the movement mechanism is housed inside the window frame and a case fixed to the window frame.

[0018] If the moving mechanism is housed inside the window frame and a case fixed to the window frame as in this configuration, it is possible to enhance the aesthetic appearance of the side windows, allowing passengers to enjoy the scenic scenery along the line without any sense of incongruity. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic front view of the side window structure when the side window is in a closed state, as viewed from outside the vehicle. FIG. [Figure 2] 1 is a schematic front view of the side window structure when the side window is fully open, as seen from outside the vehicle. FIG. [Figure 3]FIG. 2 is a rear view of the side window structure when the side window is in a closed state, as seen from inside the vehicle. [Figure 4] FIG. 4 is a view taken along the line IV-IV in FIG. 3. [Figure 5] FIG. 4 is a view taken along the line VV in FIG. 3. [Figure 6] FIG. 6 is a view taken along the line VI-VI in FIG. [Figure 7] FIG. 2 is a rear view of the side window structure when the side window is fully open, as seen from inside the vehicle. [Figure 8] FIG. 8 is a view taken along the line VIII-VIII in FIG. 7. [Figure 9] FIG. 8 is a view taken along the line VIIII-VIIII in FIG. 7. [Figure 10] FIG. 10 is a schematic explanatory view of a side window according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of a side window structure according to the present invention will be described with reference to the drawings. In this embodiment, as an example of a side window structure, a side window structure provided on a side structure of a trolley train (an example of a railway vehicle, hereinafter referred to as a "vehicle") that runs along a scenic railway line will be described. However, the present invention is not limited to the following embodiment, and various modifications are possible within the scope of the gist thereof.

[0021] 1 and 2 show a schematic front view, as seen from outside the vehicle, of a side window structure 100 having a side window 2 formed in a side structure 1 aligned along the longitudinal direction of a trolley train. The side window structure 100 includes a window frame 10 provided on the side structure 1 of the vehicle, a fixed window 2A fixed to the window frame 10, at least two movable windows 2B that can open and close openings in the window frame 10, a movement mechanism 3 that moves the at least two movable windows 2B in conjunction with each other when an external force is applied, and a locking mechanism 4 that locks the at least two movable windows 2B in predetermined positions. In this embodiment, the following description will be given of a side window 2 having two movable windows 2B: one fixed window 2A located at the bottom, a first movable window 21 located at the top, and a second movable window 22 that is closer to the fixed window 2A than the first movable window 21. The first movable window 21, second movable window 22, and fixed window 2A are arranged in this order from the outside to the inside of the vehicle (see also FIG. 9). It should be noted that "at least two movable windows 2B" means that in addition to the two movable windows, the first movable window 21 and the second movable window 22, a further movable window 2B may be provided.

[0022] The side window 2 shown in FIG. 1 is in a closed state, and the pair of biasing members 34 of the movement mechanism 3 have a tensile force slightly greater than the combined load of the weight of the first movable window 21 and half the weight of the second movable window 22. In other words, each biasing member 34 has a tensile force slightly greater than the combined load of half the weight of the first movable window 21 and one-quarter the weight of the second movable window 22. Therefore, when the locking mechanism 4 is unlocked, the two movable windows 2B can be moved downward with only a small external force. Furthermore, the side window 2 shown in FIG. 2 is in a fully open state, ensuring an opening area equal to the combined strokes of the first movable window 21 and the second movable window 22. This allows for a larger opening area without glass compared to a conventional system consisting of a single movable window. Furthermore, as will be described in detail later, the movement mechanism 3 moves at least two movable windows 2B in conjunction with each other, thereby improving operability compared to moving each movable window 2B individually.

[0023] As shown in Figures 3 and 8, the window frame 10 is fitted into the opening of the side structure 1 and covers the outer peripheral edge of the side window 2. The window frame 10 has an upper frame 11 arranged above the side window 2, a pair of side frames 12 arranged on both sides of the side window 2, and a lower frame 13 that fixes the outer peripheral edge of the fixed window 2A. The side frame 12 is integrally formed with a first side frame 12a that covers the side edge of the first movable window 21, a second side frame 12b that covers the side edge of the second movable window 22, and a third side frame 12c (side frame of the lower frame 13) that fixes the side edge of the fixed window 2A.

[0024] The first side frame 12a is formed in a U-shape with the exterior side longer than the interior side. A spacer 52 for adjusting the position of the window frame 10 is provided on the exterior side of the first side frame 12a, and a protrusion 12a1 is formed to hold the spacer 52. A first push plate 51 is fixed to the exterior side of the side structure 1 with a bolt (not shown, the same applies below), which presses the spacer 52 and a first sealant 53 arranged inside the spacer 52 against the side frame 12. A first guide rail 12a2 is fixed to the interior side of the first side frame 12a, and the first movable window 21 moves up and down along this first guide rail 12a2.

[0025] The second side frame 12b is formed in a U-shape with the inside side being longer than the outside side. A second guide rail 12b1 is fixed to the inside of the second side frame 12b, and the second movable window 22 moves up and down along this second guide rail 12b1. An accommodation space S that accommodates a movable pulley 31, which will be described later, is formed between the inside side of the first side frame 12a and the outside side of the second side frame 12b, and the movable pulley 31 can move up and down within this accommodation space S.

[0026] The third side frame 12c is part of the lower frame 13, which is formed in a hollow box shape and whose inside side doubles as the inside side of the second side frame 12b. The third side frame 12c has a reinforcing plate 12c1 that extends from the outside side of the car toward the inside side of the car from near the tip of the second guide rail 12b1, and an end of the reinforcing plate 12c1 protrudes toward the inside side of the car. On the inside side of the third side frame 12c, a second sealant 55, which is arranged outside the end of the reinforcing plate 12c1, is pressed toward the side frame 12 by a second push plate 54 fixed to the inside side of the car with bolts.

[0027] The fixed window 2A is a laminated glass, and is fixed to the lower region of the window frame 10 with a pair of sealing materials 24 pressed against the tips of a pair of fixing plates 23, 23 which are fixed to a lower frame 13 (third side frame 12c) that is rectangular in front view with fastening members B. In addition, a retaining frame 28 that holds the fixed window 2A is sandwiched between the pair of fixing plates 23, 23, closer to the window frame 10 than the pair of sealing materials 24.

[0028] The first movable window 21 has a first single-pane glass 21a and a first retaining frame 21b that holds the outer periphery of the first single-pane glass 21a with a sealant 25 disposed on the vehicle interior side. The first retaining frame 21b is composed of a box-shaped first upper retaining frame 21b1, a box-shaped first lower retaining frame 21b2, and a pair of first-side retaining frames 21b3 connected to the first upper retaining frame 21b1 and the first lower retaining frame 21b2 (see also FIG. 9 ). A locking mechanism 4 is fixed to the upper part of the first upper retaining frame 21b1, and the lower end of the first lower retaining frame 21b2 is formed with a flat surface that can abut against a stopper T. The first-side retaining frame 21b3 is formed in an L-shape with a cutout portion 21c on the vehicle interior side. An L-shaped guide plate 21d that guides the movement of the movable pulley 31 associated with the up and down movement of the second movable window 22 is fixed to the cutout portion 21c with a bolt or the like.

[0029] The second movable window 22 includes a second single-pane glass 22a that is closer to the fixed window 2A than the first movable window 21, and a second retaining frame 22b that holds the outer periphery of the second single-pane glass 22a with a sealant 26 disposed on the vehicle interior side. The second retaining frame 22b includes a box-shaped second upper retaining frame 22b1, a box-shaped second lower retaining frame 22b2, and a pair of second-side retaining frames 22b3 connected to the second upper retaining frame 22b1 and the second lower retaining frame 22b2 (see also FIG. 9 ). The second-side retaining frame 22b3 is formed in an L-shape with a bent portion 22c on the vehicle exterior side, and the tip of the guide plate 21d faces the bent portion 22c. A support block 22d is fixed to the vehicle exterior side of the second-side retaining frame 22b3, and a movable pulley 31 is rotatably fixed to the support block 22d. That is, an accommodation space S for accommodating the movable pulley 31 is formed between the guide plate 21d fixed to the notched portion 21c of the first side holding frame 21b3, the second side holding frame 22b3, and the side frame 12.

[0030] 3 and 8, the movement mechanism 3 has a pair of movable pulleys 31 fixed to both side portions (second side retaining frame 22b3) of the second movable window 22, a pair of fixed pulleys 32 housed in a case 14 fixed to both upper side portions (upper frame 11) of the window frame 10, wires 33 stretched across the movable pulleys 31 and the fixed pulleys 32, and a biasing member 34 that pulls at least two movable windows 2B upward via the wires 33. Because the movement mechanism 3 is formed from the movable pulleys 31, the fixed pulleys 32, the wires 33 and the biasing member 34, a power source such as a motor is not required, making it inexpensive and reducing power consumption.

[0031] The biasing member 34 according to this embodiment has a leaf spring 34b, and one end of the first wire 33A is wound around another portion of the drum 34a around which the leaf spring 34b is wound, and is configured with a tensile force slightly exceeding the combined load of half the weight of the first movable window 21 and one-fourth the weight of the second movable window 22. The fixed pulley 32 is rotatably fixed to both sides above the upper frame 11, and is housed inside a case 14 fixed to the window frame 10. In this way, because the movement mechanism 3 is housed inside the window frame 10 and the case 14 fixed to the window frame 10, it is possible to enhance the aesthetic appearance of the side window 2, allowing the scenic scenery along the railway line to be enjoyed without any sense of incongruity.

[0032] Each wire 33 is composed of a first wire 33A hung around the fixed pulley 32 and a second wire 33B hung around the movable pulley 31. As shown in FIGS. 3 and 4, one end of the first wire 33A is held by the biasing member 34, and the other end is held by a wire holding part H1 fixed to the upper part of the first-side holding frame 21b3 of the first movable window 21. As shown in FIGS. 3, 5, and 6, one end of the second wire 33B is held by a wire holding part H2 fixed to the first-side holding frame 21b3 of the first movable window 21, and the other end is held by a wire holding part H3 fixed to the side frame 12 of the window frame 10. In other words, the first wire 33A, the other end of which is fixed to the first-side holding frame 21b3, and the second wire 33B, the one end of which is fixed to the first-side holding frame 21b3, move in conjunction with the up and down movement of the first movable window 21.

[0033] As shown in Figure 8, the movable pulley 31 is fixed to the support block 22d of the second movable window 22, and therefore, when the first movable window 21 is moved downward, one end of the second wire 33B moves downward together with the first movable window 21, and the weight of the second movable window 22 is applied to the movable pulley 31 (see Figures 1 and 2). As a result, with the other end of the second wire 33B fixed to the side frame 12 of the window frame 10, the movable pulley 31 moves downward together with the second movable window 22, and one end of the second wire 33B moves downward together with the first movable window 21, which is subjected to the tension of the biasing member 34, so that the tension applied to the second wire 33B is maintained. At this time, the wire holding portions H1 and H3 move from above to below in the accommodation space S of the movable pulley 31, but are always positioned above the movable pulley 31.

[0034] Furthermore, the vertical positions of wire holding portion H2 and wire holding portion H3 are set so that the total length of the second wire 33B stretched over the movable pulley 31 remains the same as the movable window 2B moves up and down. Furthermore, the vertical movement of the movable pulley 31 is guided by guide plate 21d fixed to the first side holding frame 21b3 of the first movable window 21, so that smooth movement of the movable pulley 31 can be achieved even when an unexpected external force is applied to the first movable window 21 or the second movable window 22. With this configuration of the movement mechanism 3, the first movable window 21 moves when a small external force is applied, and the second movable window 22 can move in conjunction with this first movable window 21.

[0035] As shown in Fig. 3, the locking mechanism 4 locks the upper edge of the first movable window 21 in the position of the upper frame 11, and locks the second movable window 22, which moves in conjunction with the first movable window 21, between the first movable window 21 and the fixed window 2A. As shown in Fig. 9, the locking mechanism 4 has a handle 41 fixed to the center of the top of the first movable window 21, a pair of rods 42 that can be rotated by operating the handle 41, and engaged portions 21e that are fixed to both sides of the top of the window frame 10 and can engage with engaging portions 42a at the ends of the rods 42. The locking mechanism 4 in this embodiment has a simple structure because it can be switched between locked and unlocked by operating the handle, and because the handle 41 is fixed to the center of the top of the first movable window 21, it is highly visible and convenient.

[0036] The handle 41 includes two handles 41a that can be held by an occupant or the like with both hands. By grasping these handles 41a with both hands and pulling them downward, the pair of rods 42 rotate, disengaging the engaging portions 42a from the engaged portions 21e and establishing an unlocked state (see dashed lines in FIG. 9). When the handle 41 is moved downward in this state, the state changes from that of FIG. 1 to that of FIG. 2, and at least two movable windows 2B abut against the stoppers T (see FIG. 9). When the occupant or the like then pushes the handle 41 upward, the engaged portions 21e of the first movable window 21 engage with the engaging portions 42a of the rods 42, establishing a locked state.

[0037] As shown in FIG. 9, the fixed window 2A has an armrest 27 provided above the lower frame 13, allowing the entire upper half of the body above the armrest 27 to be an open space without glass. As a result, passengers can enjoy the scenic scenery along the railway line while maximizing their experience of the natural breeze. Also, as shown in FIG. 3, an openable first inspection hatch 15 is provided on the side of the first movable window 21 in the window frame 10 (side frame 12), and an openable second inspection hatch 16 is provided on the side of the second movable window 22. The first inspection hatch 15 allows the status of the first wire 33A to be checked, and the second inspection hatch 16 allows the status of the second wire 33B and the movable pulley 31 to be checked. As a result, even if the first wire 33A, the second wire 33B, or the movable pulley 31 is damaged, it can be easily confirmed and replaced. Furthermore, as described above, the first movable window 21 and the second movable window 22 have the seals 25, 26 arranged only on the vehicle interior side, so that the glass of the movable window 2B can be easily replaced by simply peeling off the seals 25, 26.

[0038] [Another embodiment] FIG. 10 shows a side window structure 100 according to another embodiment. In the above-described embodiment, the side window 2 is configured from bottom to top in the order of the fixed window 2A, the second movable window 22, and the first movable window 21, as shown in FIG. 1 . However, in another embodiment, the side window 2 may be configured from bottom to top in the order of the first movable window 21, the second movable window 22, and the fixed window 2A, as shown in FIG. 10 . In this case, compared to the example shown in FIG. 1 , the wire holders H2 and H3 are positioned below the movable pulley 31, and the locking mechanism 4 is positioned at the lowest position. Both the first movable window 21 and the second movable window 22 bear the entire load (each of the pair of biasing members 34 bears half the load), but the basic effects are the same as those of the above-described embodiment. Note that in this other embodiment, the moving mechanism 3 may be positioned below the locking mechanism 4. In this case, the first wire 33A is raised from the fixed pulley 32 housed in the lower case 14 and then passes through an additional upper fixed pulley 32.

[0039] [Other embodiments] (1) In the above-described embodiment, the moving mechanism 3 is mechanically configured with a movable pulley 31, a fixed pulley 32, a wire 33, and a biasing member 34, but a driving source for extending and contracting the wire 33 may be provided, or each movable window 2B may be moved up and down by a motor or the like. (2) The locking mechanism 4 described above has two handles 41a that can be held by an occupant with both hands, which are located at the center of the upper part of the movable window 2B. However, unlocking levers or the like may be provided on both sides of the movable window 2B. In addition, the engaging portion 42a of the locking mechanism 4 may have any shape, such as a latch plate. (3) In the above-described embodiment, the moving mechanism 3 is housed inside the window frame 10 and the case 14 fixed to the window frame 10, but the entire mechanism may be housed inside the window frame 10, or a portion of the mechanism may be exposed. (4) The number and size of the fixed windows 2A and the movable windows 2B in the above-described embodiment are not particularly limited. For example, the fixed windows 2A may be configured to include two or more windows. (5) The side window structure 100 in the above-described embodiment is not limited to use in railway vehicles, but may also be used in side windows for detached houses or buildings. [Industrial Applicability]

[0040] The present invention can be used in a side window structure having a side window. [Explanation of symbols]

[0041] 1: side structure, 2: side window, 2A: fixed window, 2B: movable window, 3: moving mechanism, 4: locking mechanism, 10: window frame, 14: case, 21: first movable window, 21e: engaged portion, 22: second movable window, 31: moving pulley, 32: fixed pulley, 33: wire, 34: biasing member, 41: handle, 42: rod, 42a: engaging portion, 100: side window structure

Claims

1. a window frame provided on a side structure of the railway vehicle; a fixed window fixed to the window frame; At least two movable windows that can open and close openings in the window frame; a moving mechanism that moves the at least two movable windows in conjunction with each other when an external force is applied; and a locking mechanism for locking the at least two movable windows in position.

2. the at least two movable windows include a first movable window and a second movable window that is closer to the fixed window than the first movable window; The side window structure according to claim 1 , wherein the first movable window is disposed above the second movable window.

3. The side window structure described in claim 2, wherein the moving mechanism includes a pair of movable pulleys fixed to both sides of the second movable window, a pair of fixed pulleys fixed to both upper sides of the window frame, wires respectively stretched over the movable pulleys and the fixed pulleys, and a biasing member that pulls the at least two movable windows upward via the wires.

4. The side window structure described in claim 2 or 3, wherein the locking mechanism includes a handle fixed to the center of the upper part of the first movable window, a pair of rods that can be rotated by operating the handle, and an engaging portion fixed to both sides of the upper part of the window frame and that can engage with an engaging portion at the tip of the rod.

5. 4. The side window structure according to claim 1, wherein the movement mechanism is housed inside the window frame and a case fixed to the window frame.

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