Side sliding door structure

Abstract

To provide a side sliding door structure which enables a person to enjoy a landscape while directly feeling scenic air along a roadside.SOLUTION: A side sliding door structure 1 includes a side sliding door 2 for opening and closing a doorway 100 of a railcar, a drive mechanism 3 for driving the side sliding door 2 to open and close, and a side bodyshell 10 having a door pocket 4 for accommodating the side sliding door 2 when the side sliding door 2 is in an open state, wherein the drive mechanism 3 is disposed in a lower region of the side sliding door 2, and the side bodyshell 10 has a first opening 5a through which an upper region of the side sliding door 2 in a closed state is open to the atmosphere.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a side sliding door structure equipped with a side sliding door that opens and closes the boarding and alighting door of a railway vehicle. [Background technology]

[0002] Conventionally, a double-hinged sliding door structure has been known as a side sliding door that opens and closes the boarding / alighting door of a railway vehicle (see, for example, Patent Document 1). This side sliding door structure houses an air cylinder and a gear mechanism inside a side structure above the boarding / alighting door, and in conjunction with the piston rod of this air cylinder opening and closing one side sliding door, the gear mechanism that meshes with the piston rod opens and closes the other side sliding door.

[0003] The side sliding door structure described in Patent Document 1 has a lower rail in the base section that defines the lower edge of the boarding / alighting door, and a groove in the bottom of the sliding door that engages with the lower rail, preventing the sliding door from interfering with the side structure when opening or closing, and preventing the sliding door from malfunctioning when pushed by a passenger. Also, when a groove is provided in the bottom of the sliding door, the side sliding door structure described in Patent Document 1 brings the bottom of the sliding door into contact with a lower abutment section provided along the lower edge of the boarding / alighting door, thereby suppressing the intrusion of running noise into the car interior. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-120408 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventional side sliding doors, of which the side sliding door structure described in Patent Document 1 is a typical example, house air cylinders and the like inside the side structure above the entrance and exit, so the area above the side sliding door has to be an enclosed space. Also, the side sliding door structure described in Patent Document 1 has increased sealing properties to prevent running noise from entering the vehicle interior, so it is not possible to take air from outside the vehicle into the vehicle interior.

[0006] However, there is a need for people to enjoy the scenery while directly feeling the air along the scenic railway line, just like on a trolley train. The side sliding door structure described in Patent Document 1 is unable to meet such needs because it focuses on sound insulation. Therefore, there is a demand for a side sliding door structure that allows people to enjoy the scenery while directly feeling the air along the scenic railway line. [Means for solving the problem]

[0007] The characteristic configuration of the side sliding door structure according to the present invention is that it comprises a side sliding door that opens and closes the boarding and alighting entrance of a railway vehicle, a drive mechanism that drives the side sliding door to open and close, and a side structure having a door pocket that houses the side sliding door when the side sliding door is in an open state, wherein the drive mechanism is arranged in a region below the side sliding door, and the side structure has a first opening that is open to the atmosphere in an region above the side sliding door when it is in a closed state.

[0008] In this configuration, since the drive mechanism is located in the area below the side sliding door, there is no need to place any obstacles in the area above the side sliding door. Therefore, the side structure in this configuration has a first opening that is open to the atmosphere in the area above the side sliding door when it is closed. In other words, of the area above the side sliding door, at least the area above the side sliding door when it is closed is an open space without glass.

[0009] As a result, passengers can directly feel the scenic air along the railway line from the first opening. Also, if the height satisfies the standards, the height of the side sliding doors can be set below the eye level of adults, allowing passengers to enjoy the scenic view along the railway line from the area above the side sliding doors that are open to the atmosphere.

[0010] In this way, this configuration has a side sliding door structure that allows passengers to enjoy the scenery while directly feeling the air along the scenic 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 state, and the first opening and the second opening form a continuous opening.

[0012] In this configuration, in addition to the first opening above the side sliding door in the closed state, a second opening is provided above the side sliding door in the open state, and the first and second openings form a continuous opening, so that a large opening can be formed above the side sliding door, allowing many passengers to enjoy the scenery while directly feeling the air along the scenic railway line.

[0013] Another characteristic feature is 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 being housed in the door pocket.

[0014] In this configuration, a sliding part is formed at the bottom end of the side sliding door, and this sliding part is housed in a door pocket together with the guide rail. This makes it possible to protect the guide rail and sliding part from wind-blown dust, thereby achieving a longer lifespan and smoother opening and closing of the side sliding door.

[0015] Another characteristic feature is that the drive mechanism has an air cylinder housed under the floor of the railway vehicle, and the rod of the drive mechanism and the lower end of the side sliding door are fixed together via a connecting fitting.

[0016] By storing this type of air cylinder under the floor, it is possible to secure a larger passenger compartment space, allowing more passengers to experience the scenic air along the railway line. In addition, because the rod of the drive mechanism and the lower end of the side sliding door are fixed via a connecting metal fitting, the structure is simple and maintenance is easy.

[0017] Another characteristic feature is that the central region of the side sliding door and the door pocket is configured so that the outside of the vehicle can be seen from inside the vehicle through glass.

[0018] As in this configuration, if the central areas of the side sliding doors and door pockets are glass so that the outside of the car can be seen from inside the car, even small children can enjoy the scenic scenery along the line while experiencing the natural breeze convection introduced through the openings. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 10 is a schematic explanatory diagram when the side sliding door is in a closed state. [Figure 2] FIG. 10 is a schematic explanatory diagram of the side sliding door in an open state. [Figure 3] FIG. [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. DETAILED DESCRIPTION OF THE INVENTION

[0020] An embodiment of a side sliding door structure according to the present invention will be described below with reference to the drawings. In this embodiment, as an example of a side sliding door structure, 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") 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 schematic explanatory diagrams of a side sliding door structure 1 equipped with a side sliding door 2 that opens and closes a boarding / alighting entrance 100 formed in a side wall along the longitudinal direction of a trolley train vehicle. The side sliding door structure 1 includes a side sliding door 2 that opens and closes the boarding / alighting entrance 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 that has a door pocket 4 that houses the side sliding door 2 when the side sliding door 2 is in an open state.

[0022] The side sliding door 2 is a single-leaf door that opens and closes the entrance 100. The side sliding door 2 is approximately 1.4 m high from the floor, and has an opening 5 formed in its upper area that is always open to the atmosphere. The entrance 100 needs to be at least 1.8 m high, so the opening 5 is at least 0.4 m high. The single single-leaf side sliding door 2 is driven to open and close by a drive mechanism 3. The opening 5 will be described below as a first opening 5a when the side sliding door 2 is in a closed state (the state in FIG. 1 ), and as a second opening 5b when the side sliding door 2 is in an open state (the state in FIG. 2 ). In addition, the door pocket 4 side will be described as the front side in the traveling direction of the vehicle, and the entrance 100 side will be described as the rear side in the traveling direction of the vehicle.

[0023] As shown in Figures 1 to 3, the side sliding door 2 has a main body 21 to which the window glass 2a is fixed in the central region, a lower plate 22 fixed to the bottom of the main body 21 and linked to the tip of the drive mechanism 3, and an upper plate 23 fixed to the top of the main body 21 and whose left and right positions in the direction of travel are guided during sliding movement.

[0024] 3 and 5, the main body 21 is made up of a hollow rectangular steel plate 21a whose periphery functions as a window frame and whose ends are reinforced with U-shaped steel, and the lower and upper parts of the rectangular steel plate 21a are continuous with a lower plate part 22 and an upper plate part 23, respectively. A sealant 21b that seals the periphery of the window glass 2a is pressed against the inside of the rectangular steel plate 21a by the inner window frame from the inside of the vehicle, and the window glass 2a is made up of laminated glass with an interlayer film disposed between a pair of glass plates.

[0025] 3 to 5, the lower plate portion 22 is configured along the longitudinal direction of the vehicle and is made of a hollow, long steel plate reinforced at both ends with U-shaped steel, and a connecting fitting 6 is fixed to the end on the door pocket 4 side with a plurality of fastening members (bolts, nuts). The lower plate portion 22 is made up of a lower main plate 22A that is equal in width and length to the main body portion 21 and a lower storage plate 22B that is stored inside the door pocket 4, which are continuous with each other.

[0026] A pair of guide portions 22Aa, each having an inverted U-shaped cross section, is fixed to both sides of the lower main plate 22A of the lower plate portion 22 along the vehicle longitudinal direction on the opposite side from the main body portion 21. These guide portions 22Aa slide on protruding rails Fa that protrude upward from the floor plate F along the vehicle longitudinal direction, thereby guiding the side sliding door 2 to prevent it from tilting. In this embodiment, since the pair of guide portions 22Aa is provided on both sides of the lower main plate 22A, it is possible to effectively prevent the side sliding door 2 from tilting while reducing sliding resistance.

[0027] A plurality of (two in this embodiment) sliding members 22Bb, which can slide along a guide rail R, are fixed to the lower end of the lower storage plate 22B of the lower plate portion 22 on the drive mechanism 3 side (the lower end of the side sliding door 2), while being accommodated in the door pocket 4. The guide rail R is fixed with bolts or the like to a support member Ra, such as a steel material, which is fixed to the upper plate Ba of the underfloor housing B, which forms the lower region of the door pocket 4. The guide rail R is integrally formed with a base Rb on the support member Ra side and a constricted portion Rc, which has a pair of V-shaped notches formed on the left and right sides in the traveling direction. Each sliding member 22Bb has a gate-like shape extending along the longitudinal direction of the vehicle, and is formed with a pair of protrusions 22Bb1 that engage with the constricted portion Rc. Each sliding member 22Bb is fixed with multiple bolts 73 to a flange 72 of an inverted T-shaped intermediate member 7, which is fixed with multiple bolts 71 to a U-shaped steel beam at the lower end of the lower storage plate 22B.

[0028] The lower storage plate 22B has a bulging portion 22Ba formed in a location where the connecting fitting 6 is fixed that bulges toward the vehicle interior. One end of the connecting fitting 6 is fixed to the bulging portion 22Ba, and the other end engages with a disk-shaped member 31a fixed to the tip of a piston rod 31 (an example of a rod) of the drive mechanism 3. The connecting fitting 6 is bent from one end to the other end toward the vehicle interior, and an engaging plate 6a that can engage with the disk-shaped member 31a is connected to the other end.

[0029] The upper plate portion 23 is configured along the longitudinal direction of the vehicle and is made of a hollow, long steel plate reinforced at both ends with U-shaped steel. The upper plate portion 23 is continuous with an upper main plate 23A having the same width and length as the main body portion 21, and an upper storage plate 23B having the same width and length as the main body portion 21 and stored inside the door pocket 4.

[0030] A portion of the upper storage plate 23B fits 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 made up of L-shaped steel 8a such as stainless steel and a resin material 8b such as nylon fixed to the L-shaped steel 8a, with the resin material 8b being arranged on the inside facing the upper storage plate 23B. As a portion of the upper storage plate 23B fits between the pair of guide plates 8, the left and right position in the traveling direction is guided when the side sliding door 2 slides, and tilting of the side sliding door 2 is prevented. The guide plate 8 may be provided inside the upper side of the door pocket 4 over the entire upper area of ​​the door pocket 4, or may be provided only in a predetermined range on the entrance / exit 100 side.

[0031] The drive mechanism 3 is disposed in a region below the side sliding door 2, and has an air cylinder housed under the floor of the vehicle (underfloor casing B). This air cylinder is a direct acting actuator that is driven using compressed air, and a piston rod 31 is provided at the tip. Because the drive mechanism 3 in this embodiment is disposed in the underfloor casing B, an opening 5 can be formed in the region above the side sliding door 2. Note that air cylinders are a well-known technology and will not be described in detail here, but the drive mechanism 3 may also be a direct acting actuator that uses an electric motor.

[0032] The side structure 10 does not abut against the upper storage plate 23B of the side sliding door 2 in the closed state, and is provided at a predetermined distance (for example, 20 mm) from the upper plate portion 23 of the side sliding door 2 in the open state. The upper portion of the side structure 10 is formed from a roof-shaped hollow steel plate, the lower portion is connected to the underfloor housing B, and both side portions are provided in positions that act as stoppers when the side sliding door 2 is opened or closed. With this configuration, a door pocket 4 that can store the side sliding door 2 in the open state is formed inside the side structure 10, and the side sliding door 2 is held in a cantilevered state by the above-mentioned guide rail R and guide plate 8 (see also Figures 1 and 2).

[0033] The side structure 10 has a main body 11 in its central region to which a pair of window panes 10a are fixed with the door pocket 4 sandwiched therebetween, and a reinforcing portion 12 located forward of the main body 11 in the direction of travel. 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 that holds the sealing material is provided between the rectangular steel plate 11a and the window panes 10a. The reinforcing portion 12 increases the strength of the side structure 10 with square pillars 12a that serve as multiple beams (one at the top and bottom, and two at the front and back in this embodiment).

[0034] As shown in FIG. 1 , the drive mechanism 3 is located below the side sliding door 2, and the side structure 10 has a first opening 5a that opens the area above the side sliding door 2 when it is closed to the atmosphere. Because the drive mechanism 3 is located below the side sliding door 2, there is no need to place any obstacles above the side sliding door 2. Therefore, in this embodiment, the side structure 10 has an open space without glass above the side sliding door 2, at least above the side sliding door 2 when it is closed. As a result, passengers can directly feel the scenic air along the railway line through the first opening 5a. Furthermore, as long as the height of the side sliding door 2 satisfies the standards, it is possible to set the height below an adult's eye level, allowing passengers to enjoy the scenic view along the railway line from the area above the side sliding door 2 that is open to the atmosphere.

[0035] As shown in Fig. 2, the side structure 10 has a second opening 5b in the area above the side sliding door 2 in the open state, and the first opening 5a and the second opening 5b form a continuous opening. This allows a large opening to be formed in the area above the side sliding door 2. As a result, many passengers can enjoy the scenery while directly feeling the 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 experience rainwater, giving them the feeling of riding on an amusement park attraction.

[0036] 1 and 2, a guide rail R is housed in the lower region of the door pocket 4, and a sliding part 22Bb that is slidable 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-blown dust, thereby achieving a longer lifespan and smoother opening and closing of the side sliding door 2.

[0037] In addition, the drive mechanism 3 has an air cylinder housed under the floor of the vehicle (underfloor casing B). This makes it possible to ensure a spacious passenger compartment, allowing more passengers to experience the scenic air along the railway line. Furthermore, 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, making the structure simple and easy to maintain. If the drive mechanism 3 is housed under the floor of the vehicle (underfloor casing B) as in this embodiment, it can be applied to a structure in which a door closing mechanism is placed under the floor, regardless of whether there is an opening or not, for example, by constructing the entire area from the opening 5 to the ceiling out of glass.

[0038] Furthermore, the central areas of the side sliding doors 2 and door pockets 4 are configured so that the outside of the car can be seen from inside the car through the glass (window glass 2a and window glass 10a). This allows even small children to enjoy the scenic views along the line while experiencing the natural breeze introduced through the openings.

[0039] [Other embodiments] (1) In the above-described embodiment, the side sliding door 2 is a single-swing door, but a pair of side sliding door structures 1 may be provided at the front and rear of the traveling direction to form a double-swing door 2. In the case of a double-swing door 2, one air cylinder may be used to simultaneously open and close the two side sliding doors 2 via a gear mechanism (such as a pinion rack). (2) In the above-described embodiment, the first opening 5a and the second opening 5b are continuous to form the opening 5, but the second opening 5b may be configured as the side structure 10 and may be configured as only the first opening 5a. Furthermore, the area of ​​the second opening 5b is not particularly limited; for example, the upper region of the reinforcing portion 12 of the side structure 10 may be closed and the second opening 5b may be provided only in the upper region of the main body portion 11 of the side structure 10. (3) In the above-described embodiment, the side sliding door structure 1 is configured to hold the side sliding door 2 at one end, but the side sliding door structure 1 may also be configured to hold the side sliding door 2 at both ends by providing a guide rail R or a sliding portion 22Bb at the boarding / alighting opening 100. (4) In the above-described embodiment, the window glass 10a of the side structure 10 is made smaller than the window glass 2a of the side sliding door 2, but the two 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, the sliding portion 22Bb, which is slidable along the guide rail R, is provided with a pair of protrusions 22Bb1 that engage with the constricted portion Rc. However, the shape of the sliding portion 22Bb is not particularly limited as long as it has a structure that allows it to slide along the guide rail R. [Industrial Applicability]

[0040] INDUSTRIAL APPLICABILITY The present invention can be used in a side sliding door structure that has a side sliding door that opens and closes the boarding and alighting entrance 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 metal fitting, 10: Side structure, 10a: Window glass (glass), 22Bb: Sliding part, 31: Piston rod (rod), 100: Boarding door, B: Underfloor housing (underfloor), R: Guide rail

Claims

1. A side sliding door that opens and closes the boarding and alighting entrance of a railway vehicle; a drive mechanism for driving the side sliding door to open and close; a side structure having a door pocket that houses the side sliding door when the side sliding door is in an open state, The drive mechanism is disposed in a lower region of the side sliding door, The side structure has a first opening that is open to the atmosphere above the side sliding door when the side structure is in a closed state.

2. 2. The side sliding door structure according to claim 1, wherein the side structure has a second opening in an upper region of the side sliding door in the open state, and the first opening and the second opening form a continuous opening.

3. A guide rail is accommodated in the lower region of the door pocket, 3. The side sliding door structure according to claim 1, wherein a sliding part slidable along the guide rail is fixed to a lower end of the side sliding door while being accommodated in the door pocket.

4. the drive mechanism includes an air cylinder housed under the floor of the railcar; The side sliding door structure according to claim 3, wherein the rod of the drive mechanism and the lower end of the side sliding door are fixed together via a connecting metal fitting.

5. 3. The side sliding door structure according to claim 1, wherein a central region of the side sliding door and the door pocket is configured so that the outside of the vehicle can be seen from inside the vehicle through glass.

Images