JP6184930B2 - Rail vehicle structure - Google Patents

Description

  The present invention relates to a rail vehicle structure provided for a rail vehicle that travels along a laid track, and in particular, a double skin shape member comprising two opposing plate portions and ribs connecting these plate portions. The present invention relates to a rail vehicle structure having a side structure and a roof structure.

  Conventionally, weight reduction of a railway vehicle structure has been promoted by configuring the railway vehicle structure with a light alloy member (shape material) such as an aluminum alloy obtained by extrusion molding.

  As a representative member (shape material) made of light alloy for use in railway vehicle structures, a single plate part and a plurality of T-shaped cross sections formed integrally with the plate part in a direction crossing the plate part There are a single skin shape member provided with a reinforcing portion having a double-face shape material, and two face plates facing each other and a double skin shape member in which these face plates are connected by ribs.

  In recent years, a railway vehicle structure composed of a double-skin shape member that can reduce the number of parts constituting the railway vehicle structure and has high rigidity is becoming mainstream. However, the accuracy of extrusion molding when an aluminum alloy is extruded is approaching its limit, and it is difficult to reduce the plate thickness beyond that. For this reason, it is becoming difficult to further reduce the weight of the railway vehicle structure including the double skin shape material as a main component.

  Therefore, in order to realize further weight reduction, instead of the railway vehicle structure using a double skin shape material, a single skin shape material in which the thickness of the plate portion is reduced, and a weight reduced reinforcing member are combined with the railway vehicle. It is necessary to make a structure. Furthermore, it is necessary to develop a joining structure and a joining method that can reduce the distortion of the joining portion that joins the single skin shape member and the reinforcing member. However, the structure in which the single skin shape member is reinforced with the reinforcing member has problems such as an increase in the number of manufacturing steps and distortion of the joint portion.

  Patent Document 1 discloses a technique for joining a plate material and a reinforcing member provided in the plate material by friction stir spot welding. Specifically, it is a railcar structure of a semi-monocoque structure, and includes a plate-like outer plate panel and a ring frame that is a reinforcing member as constituent elements, and a joint between the outer plate panel and the outer plate panel, and an outer A plurality of joints are provided between the plate panel and the ring frame. A part or all of these joints are overlapped with these two members to form a lap joint by friction stir spot welding from the inside of the railway vehicle structure.

Japanese Patent Laying-Open No. 2005-239029

As the operation speed of the railway has improved, the impact on the track has increased and the driving power cost has also increased. In order to solve these problems, it is important to reduce the weight of high-speed rail vehicles. On the other hand, if the weight reduction is promoted, the rigidity of the high-speed rail vehicles will decrease and the ride quality will deteriorate. Problem arises.
An object of the present invention is to provide a rail vehicle structure having high rigidity without increasing the number of manufacturing steps.

  In order to solve the above problems, one of the representative rail vehicle structures of the present invention is a rail vehicle structure including a roof structure, a side structure, and a frame, and the roof structure and the side structure are arranged on the vehicle interior side. It is composed of a double skin shape material consisting of a face plate, a vehicle outer face plate, and ribs connecting these face plates, and the vehicle interior side plate and the rib are removed from the peripheral edge portion of the window provided in the side structure. The blowing portion between the window portion and the window portion leaves the vehicle inner side plate and the vehicle outer side plate and the rib along the height direction at both longitudinal ends thereof, and the longitudinal direction of the blowing portion. This is achieved by a rail vehicle structure in which the inner side plate and the rib at the center of the vehicle are removed.

ADVANTAGE OF THE INVENTION According to this invention, a rail vehicle structure provided with high rigidity can be provided, without increasing a manufacturing man-hour.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

FIG. 1 is a horizontal cross-sectional view of a longitudinal end portion of a railway vehicle structure. FIG. 2 is a perspective view of a partially broken portion of a railway vehicle structure including a roof structure, a side structure, and a frame, as viewed from the vehicle interior side. FIG. 3 is a view of a partially broken portion of the railway vehicle structure of FIG. 2 as viewed from the center of the vehicle body. 4 is a cross-sectional view taken along the line DD of FIG. 5 is a cross-sectional view taken along the line CC of FIG. 6 is an enlarged cross-sectional view of a portion A in FIG. FIG. 7 is an enlarged cross-sectional view of a portion B in FIG.

  A rail vehicle is a vehicle that is used in a transportation system that operates along a laid track (tracks, guideways, etc.), and means a high-speed railway, a monorail, a new transportation system, or the like. Therefore, the rail vehicle structure refers to a structure provided for these transportation facilities.

  Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. First, each direction provided for explanation is defined. Each direction is three directions of the longitudinal direction 100, the width direction 110, and the height direction 120 of a rail vehicle structure. An embodiment of the present invention will be described by taking a railway vehicle as an example of a rail vehicle as an example, and the configuration and features of the railway vehicle structure used in the railway vehicle will be described.

  FIG. 1 is a horizontal sectional view of a longitudinal end portion of a railway vehicle structure, and FIG. 2 is a partially broken portion of the railway vehicle structure including a roof structure, a side structure, and a frame, viewed from the inside of the vehicle. It is a perspective view. 3 is a view of the partially broken portion of the railcar structure of FIG. 2 as seen from the center of the vehicle body, and FIG. 5 is a cross-sectional view taken along the line CC of FIG.

  In general, the railway vehicle structure 5 is a rectangular parallelepiped composed of a base frame 40 forming a floor surface, a side structure 20 forming a side surface, a roof structure 26, and a wife structure 50 provided at an end in a longitudinal direction 110. is there. The roof structure 26 and the side structure 20 are curved surfaces that gently protrude toward the outside of the railway vehicle structure 5.

  The underframe 40 includes a side beam 42 provided at both ends of the width direction 110, a plurality of cross beams 44 provided along the width direction 110 in a mode crossing the side beam 42, and a mode covering the upper surfaces of the plurality of side beams 44. And a joist 45 that is extruded integrally with the floor plate 43. Although not shown, an indoor floor board on which a seat or the like is placed is fixed to the upper part of the joist 25.

  The roof structure 26 and the side structure 20 are formed of a double skin shape member including a face plate 33 on the inner side of the vehicle, a face plate 34 on the outer side of the vehicle, and ribs 35 (see FIG. 4) connecting these both side plates. The double skin shape members constituting the roof structure 26 and the side structure 20 are hollow extruded shapes in which the face plates 33 and 34 and the rib 35 are integrally formed by extrusion, and the double skin shape is extruded in a direction along the longitudinal direction 100. The skin shape members are butted together, and the butted portions are joined by friction stir welding or fusion welding.

  The end structure 50 erected at the end of the frame 40 in the longitudinal direction 100 also includes a face plate 33 on the inner side of the vehicle, a face plate 34 on the outer side of the vehicle, and ribs 35 connecting these both side plates. Consists of double skin profiles. The double skin member constituting the wife structure 50 is extruded in a direction along the height direction 120.

  The roof structure 26, the side structure 20, and the wife structure 50 partially remove the face plate 33 and the ribs 35 connected to the face plate 33 by machining to reduce the weight. The opening provided for the window 22 and the entrance / exit (not shown) is processed including face plates 33 and 34 inside and outside the vehicle and ribs 35 connecting them.

  As shown in FIG. 1, a railway vehicle structure 5 includes a central structure 10a at the center in the longitudinal direction 100, and an end structure 10b located at the end in the longitudinal direction 100 in a manner connected to the central structure 10a. Is provided. At both ends of the end structure 10b in the width direction 110, an equipment room 28 in which a control device for controlling an air conditioner or the like is housed is provided, and a space between the equipment rooms 28 forms a passage.

  The equipment room 28 is a space configured by being partitioned by the side structure 20, the wife structure 50, and the equipment room partition walls 22 a and 22 b, and the equipment room partition walls 22 a and 22 b are 120 in the height direction like the wife structure 50. It is comprised from the double skin shape material extruded in the direction along. Similarly to the other structures 20, 26, 50, the device chamber partition walls 22a, 22b also have a face plate and ribs connected to the face plate removed as necessary for weight reduction.

  As shown in FIG. 3, the inner side plate 33 and the rib 35 are removed from the peripheral portion of the window 22 of the side structure 20, leaving the outer side plate 34. The ribs 35a at both ends of the window 22 in the height direction 120 are provided so that the vehicle inner side plate 33 and the vehicle outer side plate 34 are orthogonal to the width direction 110, and form an outer edge portion of the window 22 in the height direction 120. To do.

  The blowing portion 23 between the windows 22 leaves the vehicle inner side surface plate 33, the vehicle outer side surface plate 34 and the rib 35 along the height direction 120 at both ends in the longitudinal direction 100, and the center in the longitudinal direction 100. The interior side plate 33 and the rib 35 are removed. The portions where the vehicle interior side plates 33 and the ribs 35 are left along the height direction 120 described above are end roofs in such a manner that the dimension in the longitudinal direction 100 increases as they approach the end roof structure 26a and the side beams 42. The structure 26a and the side beam 42 are connected.

  Further, the interior side plate 33 and the ribs 35 are left in the height direction 120 from the ribs 35a at the center in the longitudinal direction 100 of the window 22 toward the end roof structure 26 and the side beams 42. The portion to be connected is connected to the end roof structure 26a and the side beams 42 in such a manner that the dimension in the longitudinal direction 100 increases as the end roof structure 26a and the side beams 42 are approached.

4 is a cross-sectional view taken along the line DD of FIG. 6 is an enlarged cross-sectional view of a portion A in FIG. 4, and FIG. 7 is an enlarged cross-sectional view of a portion B in FIG.
The structure shown in FIG. 4 is composed of a double skin shape member having the roof structure 26 including the end roof structure 26 a and the vehicle outer side face plate 34 and the rib 35 of the side structure 20. As described above, part of the in-vehicle side plate 33 and the ribs 35 are removed for weight reduction. In this case, there is a portion that bears the strength of the railway vehicle structure only by the outboard side plate 34. For this reason, in the structure shown in FIG. 4, in order to maintain the strength and rigidity of the vehicle outer side plate 34 without increasing the weight, the vehicle outer side plate 34 and the rib 35 are surrounded by the vehicle outer side plate 34. A reinforcing part is provided inward. Some of these reinforcing portions have a substantially T-shaped cross section (see FIG. 7), and others have a hollow prismatic shape (see FIG. 6).

By integrally extruding the above-described reinforcing portion to the vehicle outer side surface plate 35, high strength and rigidity can be maintained even when the vehicle side surface plate 33 and the ribs 35 are partially removed for weight reduction. Can do. In addition, as with the equipment room partition wall 22a and the like, for example, after a cargo shelf provided on the inner side of the upper part of the window 22 is extruded with a double skin shape material, the side on which the luggage is not placed for flooring (floor) Even if it is configured by removing the face plate and ribs on the other side, it is possible to configure a light load shelf having light weight and high rigidity.
By providing such a configuration, it is possible to provide a railway vehicle structure (rail vehicle structure) that has high rigidity and strength and promotes further weight reduction.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Also, a part of the configuration of the embodiment can be applied to or replaced with a part of another configuration, and another configuration can be added to the configuration of the embodiment. Further, it is possible to add / delete / replace the configuration of a part of the configuration of the embodiment.

DESCRIPTION OF SYMBOLS 5 ... Railway vehicle structure, 10a ... Center part structure, 10b ... End part structure, 20 ... Side structure, 22 ... Window, 22a, 22b ... Equipment room partition wall, 23 ... Blowing part, 26 ... Roof structure, 26a ... End part Roof structure, 28 ... equipment room, 33 ... face plate on the inside of the car, 34 ... face plate on the outside of the car, 35, 35a ... ribs, 40 ... underframe, 42 ... side beams, 43 ... floor boards, 44 ... side beams, 45 ... joists, 50 ... wife structure, 52 ... through passage.

Claims (2)

A rail vehicle structure having a roof structure, a side structure, and a frame,
The roof structure and the side structure are:
It consists of a double skin shape consisting of a car interior side plate and a vehicle exterior side plate, and ribs connecting these face plates,
The peripheral part of the window part provided in the side structure has the vehicle side plate and the rib removed,
The blowing portion between the window portion and the window portion leaves the vehicle inner side surface plate, the vehicle outer side surface plate, and the rib along the height direction at both ends in the longitudinal direction, and the lengthwise direction of the blowing portion. A rail vehicle structure characterized in that the inner side plate and the rib at the center are removed. In the rail vehicle structure according to claim 1,
The parts where the vehicle side plates and ribs are left along the height direction at both ends in the longitudinal direction of the blowing portion are the end roof structure at the end in the width direction of the roof structure and the end in the width direction of the underframe. The rail vehicle structure is connected to the end roof structure and the side beam in a divergent manner in which the longitudinal dimension increases as the side beam approaches the side beam.

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