Side sliding door structure

Abstract

To provide a side sliding door structure that enables passengers to enjoy the scenery while directly feeling the air along a scenic railway line. [Solution] The side sliding door structure 1 comprises a side sliding door 2 that opens and closes the boarding and alighting door 100 of a railway vehicle, a drive mechanism 3 that drives the side sliding door 2 to open and close, and a side structure 10 that has a door pocket 4 that houses the side sliding door 2 when the side sliding door 2 is in an open state, the drive mechanism 3 is arranged in the lower area of ​​the side sliding door 2, and the side structure 10 has a first opening 5a that opens the upper area of ​​the side sliding door 2 to the atmosphere when it is in a closed state.

Description

【Technical Field】 【0001】 The present invention relates to a side-sliding door structure provided with a side-sliding door for opening and closing the entrance and exit of a railway vehicle. 【Background Art】 【0002】 Conventionally, as a side-sliding door for opening and closing the entrance and exit of a railway vehicle, a double-opening side-sliding door structure is known (for example, see Patent Document 1). In this side-sliding door structure, an air cylinder and a gear mechanism are housed inside a side structure at an upper position of the entrance and exit. As the piston rod of this air cylinder opens and closes one side-sliding door, a gear mechanism meshing with the piston rod opens and closes the other side-sliding door. 【0003】 In the side-sliding door structure described in Patent Document 1, a lower rail is provided at a footrest portion that defines the lower edge of the entrance and exit, a groove that engages with the lower rail is provided at the bottom of the sliding door, and when the sliding door is opened and closed, the sliding door is prevented from interfering with the side structure, and malfunction of opening and closing when the sliding door is pushed by a passenger is prevented. Further, in the side-sliding door structure described in Patent Document 1, when a groove is provided at the bottom of the sliding door, a lower contact portion provided along the lower edge of the entrance and exit is brought into contact with the bottom of the sliding door to suppress the intrusion of running noise into the vehicle interior. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2015-120408 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0005】 In a conventional side-sliding door represented by the side-sliding door structure described in Patent Document 1, since an air cylinder or the like is housed inside a side structure at an upper position of the entrance and exit, the upper region of the side-sliding door has to be a sealed space. Further, in the side-sliding door structure described in Patent Document 1, since the sealing performance is enhanced to suppress the intrusion of running noise into the vehicle interior, air outside the vehicle cannot be taken into the vehicle. 【0006】 Incidentally, there is a need for passengers to enjoy the scenery while directly experiencing the scenic air along the railway line, similar to a trolley train. The sliding door structure described in Patent Document 1 prioritizes sound insulation and therefore cannot meet this need. Thus, there is a need for a sliding door structure that allows passengers to enjoy the scenery while directly experiencing the scenic air along the railway line. [Means for solving the problem] 【0007】 The characteristic configuration of the sliding side door structure according to the present invention comprises a sliding side door for opening and closing the entrance / exit of a railway vehicle, a drive mechanism for driving the sliding side door to open and close, and a side structure having a door pocket for housing the sliding side door when it is open. The drive mechanism is located in the area below the sliding side door, and the side structure has a first opening in which the area above the sliding side door when it is closed is open to the atmosphere. 【0008】 In this configuration, since the drive mechanism is located in the lower region of the sliding door, it is not necessary to place any obstructions in the upper region of the sliding door. Therefore, the side structure in this configuration has a first opening that allows the upper region of the sliding door, when closed, to be open to the atmosphere. In other words, at least the upper region of the sliding door, when closed, is an open space without glass. 【0009】 As a result, it becomes possible to directly experience the scenic atmosphere along the railway line from the first opening. Furthermore, if the height meets the standards, the height of the side sliding doors can be set below the eye level of an adult, allowing passengers to enjoy the scenic views along the railway line from the area above the open side sliding doors. 【0010】 Thus, this configuration features a sliding door structure that allows passengers to enjoy the scenery while directly experiencing the scenic atmosphere along the railway line. 【0011】 Another characteristic feature is that the side structure has a second opening in the upper region of the side sliding door when it is in the open position, and the first opening and the second opening form a continuous opening. 【0012】 As in this configuration, by providing a first opening in the upper region of the side sliding door when it is closed, and a second opening in the upper region of the side sliding door when it is open, and by having the first and second openings form a continuous opening, a large opening can be created in the upper region of the side sliding door. As a result, many passengers will be able to enjoy the scenery while directly feeling the fresh air of the scenic railway line. 【0013】 Other notable features include the fact that a guide rail is housed in the lower region of the door pocket, and a sliding part that can slide along the guide rail is fixed to the lower end of the side sliding door while housed in the door pocket. 【0014】 In this configuration, a sliding part is formed at the lower end of the sliding door, and this sliding part is housed in the door pocket together with the guide rail. This protects the guide rail and sliding part from wind and dust, resulting in a longer lifespan and smoother opening and closing of the sliding door. 【0015】 Other notable features include the fact that the drive mechanism has an air cylinder housed under the floor of the railway vehicle, and that the rod of the drive mechanism and the lower end of the side sliding door are fixed together via a connecting fitting. 【0016】 By housing the air cylinder in this configuration under the floor, it becomes possible to secure a larger passenger compartment space, allowing more passengers to experience the scenic air along the railway line. Furthermore, since the rod of the drive mechanism and the lower end of the side sliding door are fixed via a connecting fitting, the structure is simple and maintenance is easy. 【0017】 Another notable feature is that the central area of ​​the side sliding door and the door pocket is configured to allow visibility from inside the vehicle to the outside through glass. 【0018】 If the central regions of the side-sliding door and the door pocket are visible from inside the vehicle to outside through glass as in this configuration, even small children can enjoy the scenery of the scenic route while experiencing the convection of natural wind introduced through the opening. 【Brief Description of the Drawings】 【0019】 [Figure 1] It is a schematic explanatory diagram when the side-sliding door is in the closed state. [Figure 2] It is a schematic explanatory diagram when the side-sliding door is in the open state. [Figure 3] It is a front view of the side-sliding door. [Figure 4] It is a view taken along the arrow IV-IV of FIG. 3. [Figure 5] It is a view taken along the arrow V-V of FIG. 3. 【Embodiments for Carrying Out the Invention】 【0020】 Hereinafter, embodiments of the side-sliding door structure according to the present invention will be described based on the drawings. In this embodiment, as an example of the side-sliding door structure, it will be described as a side-sliding door structure provided on the side wall of a trolley train (an example of a railway vehicle, hereinafter referred to as a "vehicle") running along a scenic route. However, the present invention is not limited to the following embodiments, and various modifications are possible without departing from the gist thereof. 【0021】 FIGS. 1 and 2 show a schematic explanatory diagram of a side-sliding door structure 1 including a side-sliding door 2 that opens and closes an entrance / exit opening 100 formed in a side wall along the longitudinal direction of the vehicle of a trolley train. The side-sliding door structure 1 includes a side-sliding door 2 that opens and closes the entrance / exit opening 100 of the railway vehicle, a drive mechanism 3 that drives the side-sliding door 2 to open and close, and a side structure 10 having a door pocket 4 that houses the side-sliding door 2 when the side-sliding door 2 is in the open state. 【0022】 The side-sliding door 2 is a single-opening door that opens and closes the boarding and alighting opening 100. The side-sliding door 2 has a height of about 1.4 m from the floor, and an opening 5 is formed in the upper region thereof that is always open to the atmosphere. Since the height of the boarding and alighting opening 100 needs to be 1.8 m or more, the opening 5 has a height of at least 0.4 m or more. The single side-sliding door 2 is driven to open and close by a drive mechanism 3. The opening 5 will be described hereinafter with the upper region when the side-sliding door 2 is in the closed state (the state in FIG. 1) as the first opening 5a and the upper region when the side-sliding door 2 is in the open state (the state in FIG. 2) as the second opening 5b. Also, the side of the door pocket 4 will be described as the front side in the vehicle traveling direction, and the side of the boarding and alighting opening 100 will be described as the rear side in the vehicle traveling direction. 【0023】 As shown in FIGS. 1 to 3, the side-sliding door 2 includes a main body portion 21 with a window glass 2a fixed in the central region, a lower plate portion 22 fixed to the lower part of the main body portion 21 and interlocking with the tip of the drive mechanism 3, and an upper plate portion 23 fixed to the upper part of the main body portion 21 and guiding the left and right positions in the traveling direction during sliding movement. 【0024】 As shown in FIGS. 3 and 5, the main body portion 21 is composed of a hollow rectangular steel plate 21a with both ends reinforced by U-shaped steel and functioning as a window frame around the perimeter. The lower and upper parts of the rectangular steel plate 21a are continuous with the lower plate portion 22 and the upper plate portion 23, respectively. Inside this rectangular steel plate 21a, a sealing material 21b that seals around the window glass 2a is pressed by an inner window frame from the vehicle interior side, and the window glass 2a is composed of laminated glass with an intermediate film disposed between a pair of glass plates. 【0025】 As shown in FIGS. 3 to 5, the lower plate portion 22 extends along the vehicle longitudinal direction and is composed of a hollow long plate steel plate with both ends reinforced by U-shaped steel. A connecting fitting 6 is fixed to the end on the door pocket 4 side by a plurality of fastening members (bolts, nuts). This lower plate portion 22 is continuous with a lower main plate 22A having the same width and length as the main body portion 21 and a lower storage plate 22B housed inside the door pocket 4. 【0026】 On the lower main plate 22A of the lower plate portion 22, a pair of guide portions 22Aa, which are configured in an inverted U-shape in cross-section, are fixed to both sides along the longitudinal direction of the vehicle, opposite to the main body portion 21. These guide portions 22Aa slide against a protruding rail Fa that protrudes upward from the floor plate F along the longitudinal direction of the vehicle, thereby guiding the side sliding door 2 to prevent it from tilting. In this embodiment, since a pair of guide portions 22Aa are provided on both sides of the lower main plate 22A, the tilting of the side sliding door 2 can be effectively suppressed while reducing sliding resistance. 【0027】 Of the lower housing plate 22B of the lower plate portion 22, a plurality of sliding parts 22Bb (two in this embodiment) that can slide along the guide rail R are fixed to the lower end of the drive mechanism 3 side (lower end of the side sliding door 2) while housed in the door pocket 4. The guide rail R is fixed with bolts or the like to a support member Ra made of steel or the like, which is fixed to the upper plate Ba of the underfloor housing B that forms the lower area of ​​the door pocket 4. This guide rail R is integrally formed with a base Rb on the support member Ra side and a constricted portion Rc having a pair of V-shaped notches formed on the left and right sides in the direction of travel. Each sliding part 22Bb is configured in a gate-like shape along the longitudinal direction of the vehicle, with a pair of protrusions 22Bb1 formed thereon that engage with the constricted portion Rc. Furthermore, each sliding part 22Bb is fixed with multiple bolts 73 to the flange 72 of an inverted T-shaped intermediate member 7 which is fixed with multiple bolts 71 to a U-shaped steel at the lower end of the lower housing plate 22B. 【0028】 The lower housing plate 22B has a bulge 22Ba formed therein where the connecting fitting 6 is fixed, which bulges inward towards the vehicle. The connecting fitting 6 has one end fixed to the bulge 22Ba and the other end engaged with a disc-shaped member 31a fixed to the tip of the piston rod 31 (an example of a rod) of the drive mechanism 3. The connecting fitting 6 is bent inward towards the vehicle from one end to the other, and an engaging plate 6a that can engage with the disc-shaped member 31a is connected to the other end. 【0029】 The upper plate section 23 runs along the longitudinal direction of the vehicle and is made of a hollow, long steel plate reinforced at both ends with U-shaped steel. This upper plate section 23 consists of an upper main plate 23A, which has the same width and length as the main body section 21, and an upper storage plate 23B, which has the same width and length as the main body section 21 and is housed inside the door pocket 4. 【0030】 The upper storage plate 23B is partially fitted between a pair of guide plates 8 fixed to the upper side of the door pocket 4 inside the side structure 10. The pair of guide plates 8 are composed of an L-shaped steel 8a made of stainless steel or the like and a resin material 8b made of nylon or the like fixed to the L-shaped steel 8a, with the resin material 8b positioned on the inside facing the upper storage plate 23B. Because a part of the upper storage plate 23B is fitted between the pair of guide plates 8, the left and right position in the direction of travel is guided when the side sliding door 2 slides, and tilting of the side sliding door 2 is prevented. These guide plates 8 may be provided inside the upper part of the door pocket 4, covering the entire upper part of the door pocket 4, or they may be provided only in a predetermined area on the side of the entrance / exit 100. 【0031】 The drive mechanism 3 is located in the area below the side sliding door 2 and has an air cylinder housed in the underbody of the vehicle (underbody housing B). This air cylinder is a linear actuator driven using compressed air and is provided with a piston rod 31 at its tip. In this embodiment, since the drive mechanism 3 is located in the underbody housing B, an opening 5 can be formed in the upper area of ​​the side sliding door 2. Although a detailed explanation of the air cylinder is omitted as it is a known technology, the drive mechanism 3 may also be a linear actuator using an electric motor. 【0032】 The side structure 10 does not abut the upper housing plate 23B of the side sliding door 2 when it is closed, but is provided with a predetermined gap (for example, 20 mm) between it and the upper plate portion 23 of the side sliding door 2 when it is open. The upper part of the side structure 10 is formed from a roof-shaped hollow steel plate, the lower part is connected to the underfloor housing B, and both sides are positioned to act as stoppers when the side sliding door 2 is opened and closed. With this configuration, a door pocket 4 capable of housing the open side sliding door 2 is formed inside the side structure 10, and the side sliding door 2 is held in a cantilevered state by the guide rail R and guide plate 8 described above (see also Figures 1 and 2). 【0033】 The side structure 10 has a main body 11 in which a pair of window panes 10a are fixed with a door pocket 4 in the central region, and a reinforcing part 12 located on the front side in the direction of travel relative to the main body 11. The main body 11 is composed of a pair of rectangular steel plates 11a that function as window frames on all four sides of the central region, and a retaining steel plate 11c for holding a sealing material is provided between the rectangular steel plates 11a and the window panes 10a. The reinforcing part 12 increases the strength of the side structure 10 with multiple (in this embodiment, one at the top and bottom, and two at the front and back) rectangular columns 12a that serve as beams. 【0034】 As shown in Figure 1, the drive mechanism 3 is located in the lower region of the sliding door 2, and the side structure 10 has a first opening 5a in which the upper region of the sliding door 2, when closed, is open to the atmosphere. Because the drive mechanism 3 is located in the lower region of the sliding door 2, it is not necessary to place any obstructions in the upper region of the sliding door 2. Therefore, in this embodiment, the side structure 10 makes the upper region of the sliding door 2, at least the upper region of the sliding door 2 when closed, an open space without glass. As a result, it is possible to directly feel the scenic air along the railway line from the first opening 5a. In addition, as long as the height satisfies the standards, the height of the sliding door 2 can be set to below the eye level of an adult, so that the scenic scenery along the railway line can be enjoyed from the upper region of the sliding door 2 that is open to the atmosphere. 【0035】 Furthermore, as shown in Figure 2, the side structure 10 has a second opening 5b in the upper region of the open side sliding door 2, and the first opening 5a and the second opening 5b form a continuous opening. This allows for the formation of a large opening in the upper region of the side sliding door 2. As a result, many passengers can enjoy the scenery while directly feeling the fresh air along the scenic railway line. The side sliding door structure 1 in this embodiment can be used outdoors for vehicles, and in rainy weather, passengers can even feel the rainwater, giving them the feeling of riding an amusement park attraction. 【0036】 Furthermore, as shown in Figures 1 and 2, a guide rail R is housed in the lower region of the door pocket 4, and a sliding part 22Bb, which can slide along the guide rail R, is fixed to the lower end of the side sliding door 2 while housed in the door pocket 4. This makes it possible to protect the guide rail R and the sliding part 22Bb from wind and dust, thereby extending their lifespan and enabling smooth opening and closing of the side sliding door 2. 【0037】 Furthermore, the drive mechanism 3 has an air cylinder housed under the vehicle floor (underfloor housing B). This makes it possible to secure a larger passenger compartment space, allowing more passengers to experience the scenic air along the railway line. In addition, since the piston rod 31 of the drive mechanism 3 and the lower end of the side sliding door 2 are fixed via a connecting fitting 6, the structure is simple and maintenance is easy. As in this embodiment, by housing the drive mechanism 3 under the vehicle floor (underfloor housing B), it becomes possible to apply this to structures where the door closing mechanism is located under the floor, regardless of whether there is an opening or not, for example, by constructing the area from the opening 5 to the ceiling with glass. 【0038】 Furthermore, the central area of ​​the side sliding door 2 and the door pocket 4 is configured to allow visibility from inside the train to the outside through glass (window glass 2a and window glass 10a). This allows even small children to enjoy the scenic views along the railway line while experiencing the convection of natural breezes introduced through the openings. 【0039】 [Other embodiments] (1) In the embodiment described above, a single-leaf sliding door 2 is used, but a pair of sliding door structures 1 may be provided at the front and rear in the direction of travel, making it a double-leaf sliding door 2. In the case of a double-leaf sliding door 2, both sliding doors 2 may be opened and closed simultaneously by a single air cylinder via a gear mechanism (such as a pinion rack). (2) In the embodiment described above, the first opening 5a and the second opening 5b form a continuous opening 5, but the second opening 5b may be made into a side structure 10 and the first opening 5a may be made alone. Also, the area of ​​the second opening 5b is not particularly limited, for example, by closing off the upper region of the reinforcing portion 12 of the side structure 10 and providing the second opening 5b only in the upper region of the main body portion 11 of the side structure 10. (3) In the embodiment described above, the sliding door structure 1 is such that the sliding door 2 is held in a cantilevered manner. However, the sliding door structure 1 may also be such that the entrance / exit 100 is also provided with a guide rail R and a sliding part 22Bb to hold the door in a cantilevered manner. (4) In the embodiment described above, the window glass 10a of the side structure 10 is made smaller than the window glass 2a of the side sliding door 2, but both may have the same surface area, or the window glass 10a of the side structure 10 may be made larger than the window glass 2a of the side sliding door 2. (5) In the above-described embodiment, a pair of protrusions 22Bb1 are provided that engage with the constricted portion Rc, with the sliding portion 22Bb being slidable along the guide rail R. However, the shape of the sliding portion 22Bb is not particularly limited as long as it is a structure that can slide along the guide rail R. [Industrial applicability] 【0040】 This invention can be used in a sliding door structure that includes a sliding door for opening and closing the entrance / exit of a railway vehicle such as a trolley train. [Explanation of Symbols] 【0041】 1: Side sliding door structure, 2: Side sliding door, 2a: Window glass (glass), 3: Drive mechanism, 4: Door pocket, 5a: First opening, 5b: Second opening, 6: Connecting fittings, 10: Side structure, 10a: Window glass (glass), 22Bb: Sliding part, 31: Piston rod (rod), 100: Entrance / exit, B: Underfloor housing (underfloor), R: Guide rail

Claims

[Claim 1] A sliding side door structure installed in a railway vehicle, Side sliding doors that open and close the entrances and exits of railway cars, A drive mechanism for opening and closing the aforementioned sliding door, The structure comprises a side frame having a door pocket for housing the side sliding door when the side sliding door is in the open position, The drive mechanism has an air cylinder housed in the lower region of the floor where the side sliding door is located in the closed position. The side structure has a first opening in which the upper region of the side sliding door, when in the closed state, is open to the atmosphere. A guide rail is housed in the lower region of the aforementioned door pocket. A sliding part, which can slide along the guide rail, is fixed to the lower end of the aforementioned side sliding door while housed in the door pocket. The guide rail and the sliding part are not provided outside the door pocket, and the connecting fitting fixed to the tip of the rod of the drive mechanism is connected to the lower end of the side sliding door structure. [Claim 2] The sliding door structure according to claim 1, wherein the side structure has a second opening in the upper region of the sliding door when it is in the open state, and the first opening and the second opening form a continuous opening. [Claim 3] Inside the side structure, a pair of guide plates are provided, positioned above the door pocket. The sliding door structure according to claim 1 or 2, wherein a part of the upper receiving plate provided on the upper part of the sliding door is positioned between the pair of guide plates. [Claim 4] The side sliding door structure according to claim 1 or 2, wherein the central region of the side sliding door and the door pocket is configured to allow visibility from inside the vehicle to the outside through glass.

Images