JP4364858B2 - Car body for railway vehicles - Google Patents

Description

  The present invention relates to a vehicle body for a railway vehicle that is connected to and floats adjacent vehicle bodies so that they can be rotated about a single vertical axis.

  Conventionally, as a method of lowering the vehicle body to cope with barrier-free, etc., a vehicle body without a carriage is supported in a floating manner between vehicles with a carriage, and the vehicle body with the floating support is not provided with a carriage. It is known for rail cars, particularly trams, for example, to lower the floor (for example, see Patent Documents 1 and 2).

On the other hand, it is also known that the axle that connects the left and right wheels is eliminated, the vehicle body is supported by a carriage whose left and right wheels are lower than the axle, and the floor can be lowered between the left and right wheels of the vehicle body. (For example, refer to Patent Document 3). Thereby, the vehicle body of the vehicle having the carriage can be lowered.
JP 2001-301614 A JP 2003-48539 A JP 2003-25989 A

  By the way, the body of a streetcar or the like of the type described in Patent Documents 1 and 2 is relatively small, and the number of connected bodies is as small as 5 bodies. For this reason, from the recent barrier-free, the expansion of the passage considering the passage of wheelchairs, etc., how to increase the riding efficiency from the viewpoint of the efficiency of traffic and operation. For this purpose, it is advantageous to employ a long sheet along a conventionally known side structure.

  However, in a low-floor vehicle body that employs a carriage as described in Patent Document 3, a cross seat is adopted so that the secondary suspension on the side beam of the carriage frame is accommodated in the backrest portion of the cross seat. Therefore, the passage width due to the low floor frame portion formed between the wheels is narrowed due to the cross sheet. Even if the cross seat is replaced with a long seat, the long suspension cannot be realized with a low floor because the secondary suspension cannot be accommodated in the backrest portion. Also, no cart that can achieve this has been provided.

  Therefore, the present applicant has previously proposed a railway vehicle that uses a long seat with a low floor while having a carriage. Specifically, the underframe of the vehicle body supported by the carriage is lower than the wheels of the carriage, and has a low floor frame portion provided with a connecting portion projecting at the end for the floating support, and the low floor frame portion. The frame structure has a high floor frame part having a supported part that is supported by the carriage and extends to the side higher than the wheel through the rising frame parts from both sides of the vehicle, and the high floor frame part is positioned on the wheel. It is supported by a secondary suspension installed low on the side beams, and a seat for a long seat is placed on the raised floor frame.

  The adoption of such a long seat in a vehicle can contribute to the expansion of the interior space of the vehicle, and further convenience is demanded in this connection. Meanwhile, the present inventor has a problem that the rigidity of the vehicle body decreases and causes distortion and deformation in order to satisfy the requirement of retracting the through opening edge of the body structure of the vehicle body supported by the carriage to the backrest side of the long seat. However, it became a new problem in terms of energy saving, increased momentum, increased weight, increased cost, decreased travelability, and energy. Thus, as a result of various experiments and examinations on these points, a frame structure or a vehicle body structure that can provide sufficient strength with a relatively simple and lightweight frame structure was found.

  The object of the present invention is based on such new knowledge, is relatively simple, lightweight and sufficient strength can be obtained, and for railway vehicles that are not particularly problematic in terms of cost, running performance, and energy saving. To provide a car body.

  In order to achieve the above-mentioned object, the railway vehicle body of the present invention is connected to the adjacent vehicle bodies so as to be able to rotate around one vertical axis so as to be floating, and is itself supported by a carriage. In a vehicle body, the wheel passes through a low floor frame portion provided with a connecting portion projecting for floating support at an end lower than the wheel of the carriage, and a rising frame portion from both sides of the low floor frame portion. A high-floor frame portion having a supported portion that extends to the side higher and is supported by the carriage, and an end horizontal frame of the high-floor frame portion and a protruding horizontal frame that extends laterally from the end of the low-floor frame portion. A frame having a frame structure that is assembled by joining the outer ends with a rising frame and joining the end frame including the rising frame at the end of the rising frame, and the protruding horizontal frame and the rising frame The edge rising frame, or the edge rising frame and the rising frame in the vicinity thereof, and the edge horizontal frame of the raised floor frame part, or the edge horizontal frame and the horizontal frame in the vicinity thereof are at least box cross sections. Yes.

  The vehicle body for a railway vehicle having such a configuration can travel while being supported by the supported parts of the raised floor frame parts on the left and right sides higher than the wheels in the underframe, and having the dolly. Passengers can get on and off and go back and forth on the lower floor frame part lower than the wheels connected through the rising frame part between the frame parts, and can be given a kicking part when the high floor frame part is made into a long seat. In addition, the connecting part that protrudes from the end of the low floor frame part can be connected to the adjacent vehicle body so that it can be rotated about one vertical axis, and can be supported in a floating manner. Located at the end of the Z-shaped connecting shape of the frame and low floor frame, high rigidity due to the frame structure, the protruding horizontal frame from the low floor frame, the rising frame at the end of the rising frame, the high floor The horizontal frame part at the end of the frame part has a box cross section, and it is biased to the left and right in the width direction of the frame at the high floor frame part on both the left and right sides from the joint part at the center of the frame width direction at the end of the low floor frame part The main path through which the load due to the floating support is transmitted toward the supported part located at a distance, and exhibiting high bending strength synergistically bend and twist the high floor frame part, the rising frame part and the low floor frame part. Or their Z-shaped connection shape From or form, especially the structure can be sufficiently prevented without such as weight reduction or complicated. In addition, in the case where both the end horizontal frame of the high floor frame portion and the horizontal frame in the vicinity thereof, the end rising frame of the rising frame portion and the rising frame in the vicinity thereof are provided in a box cross section, the high floor frame portion, the rising frame portion, The three-plane solid frame made up of the frame having a low floor frame portion and an end frame having a high bending strength can be formed at the end portions of the high floor frame portion, the rising frame portion, and the low floor frame portion to further increase the strength against the load.

In addition, the connecting part is made of a solid metal block, the low floor frame part is a box material with an intermediate vertical frame placed between the left and right side vertical frames with a box cross section where the overhanging horizontal frame is joined sideways. The box mold end has a box-shaped end that is closed between the left and right overhanging horizontal frames and joined to the connecting portion to form a tapered protruding shape in plan view including the connecting portion. In the configuration,
The solid metal block allows the uniaxial rotation around the vertical necessary for the floating support of the adjacent car body. A low-floor frame with an articulated portion by placing an intermediate vertical frame between left and right side vertical frames with a box cross section that is bonded toward the side, and joining them to the box-type ends closed in a box shape with front and back plates By making the taper shape toward the connecting portion in plan view, the strength against bending and twisting of the end portion of the portion is sufficient with a hollow structure, and the volume can be reduced to a minimum without reduction in strength.

Further, the box-type end is thicker than the main body side of the low floor frame part together with the overhanging horizontal frame, and is joined with substantially the same thickness as the attachment base of the connecting part.
The strength required for the end of the low floor frame can be satisfied without waste.

Furthermore, in the configuration in which the box-type end and the connecting portion are joined by abutting the openings,
The connection part, which is a solid metal block, and the box-type end part, which is a plate structure, can easily prevent a sudden change from a solid structure to a plate structure using both openings.

Furthermore, the high floor frame portion has a wide horizontal frame in which the supported portion is reinforced, and an appropriate number of horizontal frames are arranged between the wide horizontal frame and the end horizontal frame, and the rising frame portion has an end frame. A part rising frame, a rising frame inside thereof, and a reinforced wide rising frame positioned substantially corresponding to the wide horizontal frame, and the low floor frame part on the frame plate having a window, A vertical frame and a plurality of vertical frames located between the side vertical frames are arranged in a box shape, and the horizontal frame is arranged in a width range substantially corresponding to the wide horizontal frame and the wide rising frame. In the configuration,
The strength at the portion where the supported portion of the underframe is supported by the carriage is sufficient.

  Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination in various combinations as much as possible.

  According to the vehicle body for a railway vehicle of the present invention, it has a carriage that supports and supports the high-floor frame portions on both the left and right sides higher than the wheels, and passengers can get in and out of the low-floor frame portions lower than the wheels. In addition, in order to support the adjacent vehicle body in a floating manner at the connecting portion that protrudes from the end of the low floor frame portion, connection reinforcement by the end frame to the high floor frame portion, the rising frame portion, and the low floor frame portion that are connected to the Z shape Floating support load where the end frame extends from the low floor frame, the end frame rises from the rising frame, and the end horizontal frame from the high frame extends from the connecting part to the left and right supported parts. By synergizing with the main path through which the box crosses and exhibiting high bending strength due to the box cross section, the structure is not complicated or weighted, so there is no problem of cost, running performance, energy saving, Sufficient strength is obtained To reduce the intensity dependence on, also, because Nakuseru, increased the degree of freedom in the design of the end structure.

  In addition, in the case where both the end horizontal frame of the high floor frame portion and the horizontal frame in the vicinity thereof, the end rising frame of the rising frame portion and the rising frame in the vicinity thereof are provided in a box cross section, the high floor frame portion, the rising frame portion, Since a three-dimensional solid frame with a frame with high bending strength is formed at the end of the low floor frame and end frame, the strength against the load can be further increased. As a result, the frame structure is designed slim and lighter This is an advantage that can be achieved.

  Furthermore, the connection structure and strength for floating support are easily secured at the connection part of the solid metal block, and the low floor frame part is joined by joining to the hollow box type end of the low floor frame part. Increase the strength against bending and twisting of the end with the connecting part without increasing the weight, and the taper shape toward the connecting part in plan view makes it possible to minimize the volume and the weight without reducing the strength. Can do.

  Hereinafter, a railway vehicle body according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11 for understanding of the present invention. The following description and illustration are specific examples of the present invention, and do not limit the description of the scope of the claims.

  As shown in FIGS. 8 and 9, the vehicle body for a railway vehicle according to the present embodiment is connected to the vehicle body 1 having a carriage, and the adjacent vehicle body 11 not having the carriage is connected in a floating manner to be supported in a triple manner. This is an example of a vehicle body for a railway vehicle that is applied to knitting a streetcar such as a five-way type, and in particular, a vehicle body 1 having a carriage. Although not shown in the figure, in the triple train system, the front and rear vehicle bodies 1 having a carriage are connected to each other by floatingly supporting a vehicle body 11 having no carriage between them, and in the five train system, a center having a carriage as shown in FIGS. A vehicle body 11 not having a carriage adjacent to both sides of the vehicle body 1 is supported in a floating manner, and each end portion of the vehicle body 11 having no carriage on both sides of the vehicle body 11 is not shown. 1 is connected to support floating. Accordingly, the vehicle body 1 having a carriage has a connection portion 92 provided on both sides and a connection portion 92 provided on only one side depending on whether the adjacent vehicle body 11 is supported floating on both sides or only on one side. Two kinds of things are necessary. Further, it is not particularly necessary to mount all the trolleys, and the carts can be combined with those that do not have motive power.

  The vehicle body 1 having the carriage according to the present embodiment is of a type that supports the vehicle body 11 adjacent to both sides as described above with reference to FIGS. 8 and 9, and as shown in FIGS. The left and right side beams 16a and 16b located outside the left and right wheels 12 and 13 and the wheels 14 and 15 are separated by four wheels 12 to 15 on the left and right, respectively. There is provided a cart 31 having bearings 17 to 20 and a frame 16 supported via primary suspensions 21 to 24, front and rear, left and right, and the frame 16 of the cart 31 has left and right on the side beams 16a and 16b. The support height H of the vehicle body 1 shown in FIGS. 10 and 11 by the secondary suspensions 41 and 42 is set close to the upper side of the wheels 12 to 15.

  On the other hand, the base frame 51 of the vehicle body 1 has wheels 14, 15 between the left and right raised floor frame portions 51 a, 51 b supported by the secondary suspensions 41, 42, the left and right wheels 12, 13, and the wheels 14, 15. A lower floor frame portion 51c set to a height lower than the top of the vehicle, specifically, approximately the height of the axles 12a to 15a of the wheels 14 and 15, and the left and right high floor frame portions 51a from the left and right sides of the low floor frame portion 51c. , 51b and left and right rising frame portions 51d and 51e.

  Further, on the carriage 31 side, a connecting portion 16d as shown in FIGS. 10 and 11 that connects the side beams 16a of the frame 16 passes the outer circumference of the frame 51 of the vehicle body 1 substantially along the same, On the vehicle body 1 side, a long seat 61 is provided in which the raised floor frame portions 51a and 51b are seat portions 61a and the rising frame portions 51d and 51e are kicked portions 61b. The seat 61a is installed on the seat 61a of the long seat 61, and the back 63 along the side structure of the vehicle body 1 is installed on the back of the seat 61a to improve the sitting comfort. The left and right secondary suspensions 41 and 42 are configured by front and rear coil springs 41a and 41b and coil springs 42a and 42b, respectively, but the structure and number thereof are not particularly limited.

  As described above, the side suspensions 16a, 16b of the frame 16 of the carriage 31 are separated from the left and right wheels 12, 13, and the wheels 14, 15, respectively, in relation to the primary suspensions 21, 23, primary. By being positioned and supported together with the support structure by the suspensions 22 and 24, the space between the left and right wheels 12 and 13 and the space between the wheels 14 and 15 are provided as much as possible to the dedicated space of the low floor frame portion 51c of the vehicle body 1. A wide low floor frame 51c is obtained. At the same time, flat high-floor frame portions 51a and 51b that are continuously lowered to just above the wheels 12 to 15 including the portions supported by the secondary suspensions 41 and 42 on the side beams 16a and 16b of the vehicle body 1 are obtained on the left and right. The long seat 61 having the seat portion 61a as the seat portion 61a and the rising frame portions 51d and 51e between the high floor frame portions 51a and 51b and the low floor frame portion 51c as the kicking portions 61b serves as a space for the low floor frame portion 51c. Realize on both sides. As a result, the floor between the left and right wheels 12 and 13 and the space between the wheels 14 and 15 are effectively reduced, and the supported portion 111 by the secondary suspensions 41 and 42 is also included and lowered to just above the wheels 12 to 15. A flat sheet is formed in which the left and right high floor frame portions 51a and 51b are seat portions 61a, and the rising frame portions 51d and 51e between the high floor frame portions 51a and 51b and the low floor frame portion 51c are kicked portions 61b. This can be realized, and the barrier width can be further increased by increasing the passage width of the passage 101 by the low floor frame 51c, and the riding efficiency can be improved. Specifically, in the passage 101 formed by the low floor frame portion 51 c of the vehicle body 1, standing passengers can ride in three rows along with the seating of passengers on the long seat 61. Correspondingly, three rows of hanging straps 104 are provided in the width range of the passage 101 corresponding to the low floor frame portion 51c of the vehicle body 1.

  Further, the secondary suspensions 41 and 42 are the coil springs 41a and 41b and the coil springs 42a and 42b described above that are arranged on the left and right side beams 16a and 16b in the front-rear direction. As shown in FIG. 11, the support height of the vehicle body 1 is increased by supporting the side beams 16a and 16b on the middle lower positions 16c and 16c lower than the front and rear portions supported by the primary suspensions 21 and 23 and the primary suspensions 22 and 24. The height H can be satisfied, and the secondary suspensions 41 and 42 themselves do not need to be improved, and can be applied as they are in the conventional design. The lower middle portions 16c and 16c are extended to the outside of the left and right side beams 16a and 16b as shown in FIGS. 10 and 11 so as to support the outer side of the vehicle body 1 and to make it wider. A disc brake 105 is provided at a position protruding outside the beams 16a and 16b so that the disc brake 105 does not substantially protrude outside the installation area of the secondary suspensions 41 and.

  Further, as shown in FIGS. 9 and 10, the vehicle body 1 does not have an entrance / exit, and the right-side vehicle body 11 has entrances / exits 81 at two front and rear positions as shown in FIG. 9, and the left-side vehicle body 11 is not shown. Has a doorway at one central location. The long seat 61 is provided over the entire length of the railway vehicle formed by the vehicle bodies 1 and 11. However, it is not limited to this. Although not shown, in order to make the carriage 31 a power carriage, for example, it may be provided with a motor that is located in the axle box 17-20 and directly connected to the wheels 12-15. A stator (not shown) is fixedly installed in the boxes 17 to 20, and a rotor (not shown) facing the stator is fixed to the axles 12a to 15a.

  As shown in FIGS. 8 and 9, the vehicle body 1 is connected to the adjacent vehicle bodies 11 so as to be floatingly supported so that the vehicle body 1 can be rotated around one vertical shaft 91. It is possible to run according to the curvature of the rail and its change. For this purpose, the connecting portions 92 and 93 of the vehicle bodies 1 and 11 are connected to each other via a bearing 94 so that the rotation around the single shaft 91 can be smoothly performed.

  As described above, the vehicle body 1 according to the present embodiment includes the low floor frame portion 51c in which the connecting portion 92 that protrudes for the floating support is provided at the end lower than the wheels 12 to 15 of the carriage 31, and the low floor frame portion 51c. A stand having high floor frame portions 51a and 51b having supported portions 111 that are supported by the carriage 31 that extend to the side higher than the wheels 12 to 15 through the rising frame portions 51d and 51e from both sides of the floor frame portion 51c. A frame 51 is provided.

  In this embodiment, in particular, as shown in FIGS. 1 to 6, the frame 51 extends laterally from the end horizontal frames 51a1 and 51b1 of the high floor frame portions 51a and 51b and the end of the low floor frame portion 51c. The outer ends of the projecting horizontal frames 112a and 112b are connected by the rising frames 113a and 113b, and the end frames 114a and 114b including the end rising frames 51d1 and 51e1 of the rising frame portions 51d and 51e are welded. The frame structure is joined and assembled, and further, the protruding horizontal frames 112a and 112b, the end rising frames 51d1 and 51e1 of the rising frame portions 51d and 51e, or the end rising frames 51d1 and 51e1 and the rising frame 51d2 in the vicinity thereof. , 51e2 and the horizontal side edges of the raised floor frame portions 51a, 51b And over arm 51a1,51b1 or end transverse frame 51a1,51b1 and transverse frame 51a2,51b2 its vicinity, and at least box cross section.

  Thus, the vehicle body 1 has the carriage 31 supported so as to be able to travel on the supported portions 111 of the raised floor frame portions 51 a and 51 b higher than the wheels 12 to 15, while the raised floor frame portions 51 a and 51 b of the underframe 51. Passengers can get in and out of the top of the wheels 12 to 15 connected via the rising frame portions 51d and 51e, specifically, the passage 101 on the low floor frame portion 51c lower than the axles 12a to 15a, and the high floor The kick part 61b when the long sheet 61 is made on the frame parts 51a and 51b is provided. In addition, the end frames 114a and 114b are connected and floatingly supported so that the adjacent vehicle bodies 11 can be pivoted around a single vertical axis 91 by a connecting portion 92 protruding from the end of the low floor frame portion 51c. Is located at the end of the Z-shaped connecting shape of the high floor frame portions 51a and 51b, the rising frame portions 51d and 51e, and the low floor frame portion 51c, and has high rigidity due to its frame structure and the overhang from the low floor frame portion 51c. The horizontal frames 112a and 12b, the rising edge portions 51d and 51e of the rising frame portions 51d1 and 51e1, and the high floor frame portions 51a and 51b of the horizontal frame portions 51a1 and 51b1 have a box cross section, and the low floor frame portion. As shown in FIG. 1, it is located from the connecting portion 92 at the end of the frame 51c at the end of the frame 51c to the left and right in the width direction of the frame 51 of the raised floor frames 51a and 51b on the left and right sides. Synergistically, the main path A through which the load F is transmitted by the floating support as shown in FIG. The bending and twisting of the frame portions 51a and 51b, the rising frame portions 51d and 51e, and the low floor frame portion 51c, and the deformation of the Z-shaped connection shape are particularly complicated and heavy. This can be sufficiently prevented.

  Accordingly, sufficient strength can be obtained without problems of cost performance, running performance, and energy saving, and the strength dependency on the wife structure 201 shown in FIGS. 7 and 9 can be reduced and eliminated, so that the penetration shown in FIG. The degree of freedom of design of the wife structure 201 can be increased by bringing the lip 202a of the opening 202 closer to the back 63 of the long seat 61 shown in FIG. As a result, the frame structure can be designed to be slim, and the weight can be reduced.

  Further, the end horizontal frames 51a1 and 51b1 of the high floor frame portions 51a and 51b and the adjacent horizontal frames 51a2 and 51b2, the end rising frames 51d1 and 51e1 of the rising frame portions 51d and 51e, and the rising frames 51d2 and 51e2 in the vicinity thereof. In the configuration that is partially different from the illustrated example in which both are provided in a box cross section, the high floor frame portions 51a and 51b, the rising frame portions 51d and 51e, the low floor frame portion 51c, and the end frames 114a and 114b have a high bending strength. The three-dimensional solid frames 121 and 121 shown with vertices with reference numerals are configured at the ends of the left and right high floor frame portions 51a and 51b, the rising frame portions 51d and 51e, and the low floor frame portion 51c, and the load The strength against F can be further increased. However, in the illustrated example, the rising frames 113a and 113b outside the left and right three-dimensional frames 121 are channel materials having reinforcing ribs 113c to avoid excessive weight and ensure the necessary strength.

  Moreover, as shown in FIGS. 1-6, the raised floor frame parts 51a and 51b use the outer vertical frames 51a5 and 51a5 and the vertical frames 51b5 and 51b5 as inward channel members, respectively, and have a supported part 111. The wide horizontal frames 51a3 and 51b3 are made of a downward channel material and are reinforced by a cylindrical spring receiving cylinder 123 and a spring seat 124 with respect to the laminated plate 122 and the secondary suspensions 41 and 42 from below. The frame 51a3, 51b3 and the horizontal frame 51a2, 51b2 in the vicinity of the end have a structure in which another appropriate number of horizontal frames 51a4, 51b4 are arranged as a channel material or an angle material, and the rising frame portions 51d, 51e Part rising frames 51d1, 51e1 and rising frames 51d2, 5 inside thereof e2 and reinforced wide rising frames 51d3 and 51e3 positioned substantially corresponding to the wide horizontal frames 51a3 and 51b3, and the low floor frame portion 51c on the frame plate 136 having the window 135 on the left and right sides. Side vertical frames 51c and 151c1 and a plurality of intermediate vertical frames 51c2 positioned between the side vertical frames 51c1 and 51c1 to form a box shape, and wide horizontal frames 51a3 and 51b3 and wide rising An appropriate number of horizontal frames 51c4 made of an angle material are arranged in a width range substantially corresponding to the frames 51d3 and 51e3. Thereby, the strength of the portion of the underframe 51 where the supported portion 111 is supported by the carriage 31 and the vicinity thereof are sufficient. With such a structure, the low floor frame portion 51c attaches and supports the floor plate 137 from above as indicated by phantom lines in FIGS.

  Here, as is clear from FIG. 1 and the like, the inner vertical frames 51a5 and 51b5 form a common vertical frame between the raised floor frame portions 51a and 51b and the rising frame portions 51d and 51e, and the side vertical frames 51c1 and 51c1 The rising frame portions 51d and 51e and the low floor frame portion 51c form a common vertical frame.

  1 to 4, the connecting portion 92 is made of a solid metal block, and the low floor frame portion 51c has a box cross section in which the overhanging horizontal frames 112a and 112b are joined to the left and right sides. A plurality of intermediate vertical frames 51f2 made of an angle material or a channel material are arranged between the left and right side vertical frames 51f1 and 51f1, and a box-type end 51f closed in a box shape by front and back plate materials 51f3 and 51f4 is provided. The part 51f projects between the left and right projecting horizontal frames 112a and 112b and is joined to the connecting part to form a tapered projecting shape in plan view including the connecting part. In this way, the solid metal block can be uniaxially rotated around the vertical axis 91 necessary for the floating support of the adjacent vehicle body 11, and it is easy to be satisfied in terms of connection, structure and strength. The intermediate vertical frames 51f2 and 51f2 are arranged between the left and right side vertical frames 51f1 and 51f1 having a box cross section in which the overhanging horizontal frames 112a and 112b are joined sideways, and the box type is formed by the front and back plate members 51f3 and 51f4. By joining to the closed box-type end 51f, the strength of the end of the low-floor frame 51c having the connecting portion 92 against bending and twisting is made sufficient by the hollow structure, and in plan view. The tapering shape toward the connecting part can minimize the volume without reducing the strength and contribute to weight reduction.

  Moreover, as shown in FIGS. 3 and 4, the box-type end 51 f is thicker than the main body side of the low floor frame 51 c together with the overhanging horizontal frames 112 a and 112 b, and an attachment base serving as an opening of the connecting portion 92. As a result of joining with substantially the same thickness, the strength required for the end of the low floor frame portion 51c can be satisfied without waste. Further, since the box-type end 51f and the connecting portion 92 are joined with the openings abutting each other, the connecting portion 92, which is a solid metal block, and the box-type end 51f, which is a plate structure, have both openings. It is easy to prevent sudden change from solid structure to plate structure.

  In the present invention, adjacent vehicle bodies are connected and floatingly supported so that they can rotate around a single vertical axis, and they are practically used as a vehicle body for a railway vehicle supported by a bogie. Can contribute to increase the degree of design freedom.

It is a perspective view which shows the frame of the vehicle body for rail vehicles which concerns on embodiment of this invention. It is the top view of the half part which removed and looked at the high-floor frame part of the underframe of FIG. It is a center longitudinal cross-sectional view of the base frame of FIG. It is a longitudinal cross-sectional view of the rising frame part of the underframe of FIG. It is a center cross-sectional view of the underframe of FIG. It is a partially expanded sectional view of the base frame of FIG. It is an end elevation which shows the relationship between the frame of FIG. 1, and a wife structure. It is a partial side view which shows an example of the rail vehicle which connected and formed the vehicle body which does not have the adjacent trolley | bogie by the vehicle body which has the trolley | bogie which concerns on embodiment of this invention. It is a cross-sectional view of the vehicle body having the carriage of FIG. FIG. 10 is a plan view of a vehicle having the cart of FIGS. 8 and 9. It is a principal part side view of the vehicle of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11 Car body 12-15 Wheels 21-24 Primary suspension 31 Bogie 41, 42 Secondary suspension 41a, 41b, 42a, 42b Coil spring 51 Floor 51a, 51b High floor frame part 51c Low floor frame part 51d, 51e Rising frame part 51a1, 51b1 End horizontal frame 51a2, 51b2 Horizontal frame 51c1 side vertical frame 51c2 Middle vertical frame 51d1, 51e2 Edge rising frame 51d2, 51e2 Vertical frame 51a4, 51b4 Horizontal frame 51a5, 51b5 Vertical frame 51f Box Mold end 51f1, 51f1 side vertical frame 51f2 Intermediate frame 51a3, 51b3 Wide horizontal frame 51d3, 51e3 Wide rising frame 51c4 Horizontal frame 61 Long seat 61a Seat 61b Kicking Part 62 cushion 63 back sagging portion 91 perpendicular axis 92 connecting portion 111 supported portion 201 end structure 202 through opening 202a opening edge

Claims (5)

Floating and supporting adjacent car bodies so that they can rotate around a single vertical axis.
A lower floor frame portion provided with an articulated portion extending for support of the floating at the end lower than the wheel of the carriage, and a side higher than the wheel via a rising frame portion from both sides of the low floor frame portion A rising frame between the outer ends of a high floor frame portion having a supported portion supported by an extended carriage, and an end horizontal frame of the high floor frame portion and a lateral frame extending laterally from the end of the low floor frame portion. An end frame including an end rising frame connected to the end frame of the rising frame, and having a frame structure that is assembled by joining so as to have,
The overhanging horizontal frame, the end rising frame of the rising frame portion, or the rising frame near the end rising frame and the vicinity thereof, the end horizontal frame of the raised floor frame portion, or the end horizontal frame and the horizontal frame thereof and the vicinity thereof, A vehicle body for a rail vehicle characterized by having a box cross section at least. The connecting part consists of a solid metal block, and the low floor frame part is a box type with an intermediate vertical frame between the left and right side vertical frames with a cross section of the box where the overhanging horizontal frame is joined to the side, and the plate material on the front and back A box-type end portion closed on the left and right, and the box-type end portion projects between the left and right projecting horizontal frames and is joined to the connecting portion to form a tapered projecting shape in plan view including the connecting portion. 1. A vehicle body for a railway vehicle according to 1. 3. The vehicle body for a railway vehicle according to claim 2, wherein the box-type end portion is thicker than the main body side of the low floor frame portion together with the overhanging horizontal frame, and is joined with substantially the same thickness as the attachment base portion of the connecting portion. 4. The vehicle body for a railway vehicle according to claim 3, wherein the box-type end portion and the connecting portion are joined with the openings facing each other. The high floor frame has a wide horizontal frame with reinforced supported parts, and an appropriate number of horizontal frames are arranged between the wide horizontal frame and the end horizontal frame. A frame, a rising frame inside the frame, and a reinforced wide rising frame positioned substantially corresponding to the wide horizontal frame are arranged, and the low floor frame portion is arranged on a frame plate having a window on a side vertical frame. And a plurality of vertical frames located between the side vertical frames to form a box shape, and the horizontal frame is arranged in a width range substantially corresponding to the wide horizontal frame and the wide rising frame. The vehicle body for a railway vehicle according to any one of 1 to 4.

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