JP4854707B2 - Railcar structures - Google Patents

Description

The present invention relates to a structure for a railway vehicle.

  Conventionally, in railcar panels formed by joining extruded profiles (aluminum profiles) for railway vehicles, suspension rails in the longitudinal direction of the profiles are widely used to lock equipment and interior materials. (For example, refer to Patent Document 1).

  Such a hanging groove rail is generally constituted by a pair of inverted L-shaped protrusions protruding from the face plate portion of the extruded shape member, but it is also known that it is provided at a position recessed from the face plate portion. (For example, refer to Patent Document 2).

Moreover, after preparing the extrusion member which has the curtain rail shaping | molding part (hanging groove rail shaping | molding part) which comprises a closed cross section, joining these extrusion members into a panel, in order for a curtain rail shaping | molding part to function as a curtain rail It has also been proposed to form a long hole by machining (for example, see Patent Document 3).
Japanese Patent No. 3811048 (FIGS. 1 to 4) Japanese Patent No. 3035527 (FIGS. 1 to 3) JP-A-2005-219598 (paragraphs 0014 to 0021 and FIGS. 1 to 3)

  However, the structures described in Patent Documents 1 to 3 have the following problems.

  (i) When installing hanging groove rails for locking interior materials, equipment and electrical components inside the vehicle on the side panels and roof panels, the position of the hanging groove rails required for each vehicle system Different. In this way, the position of the suspension groove rail is fixed for each vehicle system type, and openings such as windows, doorways and rooftop coolers are also fixed, and the width of the extruded profile is due to restrictions on the performance of the extruder. The diameter is regulated to about 400 mm. For this reason, the aluminum shape is naturally designed individually for each vehicle system, resulting in separate mold costs and design man-hours, making it difficult to reduce vehicle production costs.

  In addition, in order to make the extruded profile (aluminum profile) common, it may be possible to provide many suspension groove rails, but in that case, unnecessary suspension groove rails will be formed, Incurs unnecessary increase in weight and material cost.

  (ii) If the suspension groove rail protrudes from the surface of the face plate portion of the extruded shape member, when other members (other structural members or equipment) are to be buffered with the suspension groove rail, In this case, the suspension groove rail must be cut so as to be flush with the surface of the face plate portion. When this cutting location increases, man-hours increase. In addition, if a large number of suspension groove rails are provided in order to share the extruded shape (aluminum shape) as described above, the number of points to be cut increases in order to avoid interference with other members. Invite up.

The present invention, two using spatial (dead space) formed between the face plate portion, the hanging things ku protruding the groove rails, railway vehicles hanging groove with a long hole Ru provides easy formation The purpose is to provide a structural structure.

According to a first aspect of the present invention, a first face plate portion that is provided outside the railway vehicle and extends in the longitudinal direction of the vehicle, and arranged in parallel with the first face plate portion, is provided inside the railway vehicle. And a plurality of web portions connecting the first face plate portion and the second face plate portion, the extruded shape member extending in the vehicle longitudinal direction, and a plurality of the extruded shapes. The material is arranged in the vehicle vertical direction to form a part of a side structure of the railway vehicle, and the vehicle is intermittently formed on the second face plate portion of at least one extruded shape member among the plurality of extruded shape members. A railway vehicle structure further including a long hole having a long side in the longitudinal direction .

Thus, the second face plate portion corresponding to the space (dead space) which is inevitably formed between the web portion, by that form a long hole with its long side in the longitudinal direction of the vehicle, require The hanging groove portion using the long hole can be easily formed in the portion to be made. In this case, since the long holes (hanging groove portions) are intermittently provided only in necessary places, it is possible to avoid a reduction in vehicle body rigidity due to the provision of long holes for inserting the support bolts for attaching the interior material.

Moreover, since the space formed between the web portions is used, a long hole that can be used as a hanging groove portion can be provided at any position without increasing the mass.

Further, if a long hole is used as the hanging groove portion , it does not protrude from the face plate portion, so there is no portion that interferes with other members, there is no need to cut, and this is advantageous for cost reduction.

In this case, as described in claim 2, in the structure for a railway vehicle according to claim 1, of the extruded shape members arranged in the vertical direction of the vehicle, the elongated shape is arranged at the lower portion of the vehicle. A structure in which the second face plate portion of the material is intermittently formed, or at least four of the extruded shape members are arranged adjacent to each other in the vehicle vertical direction as described in claim 3, A structure in which a part of the structure is formed can be used.

Further, as described in claim 4 , in the structure for a railway vehicle according to claim 1, a bolt head having a long side and a short side can be inserted into the long hole, and the short side of the long hole Is longer than the length of the short side of the bolt head and shorter than the length of the long side of the bolt head, and the length of the long side of the long hole is the length of the bolt head. Desirably longer than the length of the side.

If it does in this way, a bolt head will be locked by a long hole by inserting and rotating a bolt head through the long hole .

According to a fifth aspect of the present invention, in the railway vehicle structure according to the first aspect, as a mark extending substantially in the vehicle longitudinal direction on the surface of the second face plate portion, which is a substantial center between the adjacent web portions. A configuration in which lines are formed is desirable. Here, the “mark line” may be a convex portion or a concave portion that allows the position of the center in the width direction to be recognized, and can be simultaneously formed at the time of extrusion molding. The mark line need not be continuous, and may be intermittent as long as the center position in the width direction is known.
If it does in this way, a suspension groove part can be easily formed between adjacent web parts based on the mark line extended in the shape material longitudinal direction in the outer surface side of a face plate part.

According to a sixth aspect of the present invention, in the railway vehicle structure according to the first aspect, a bolt head can be inserted into the elongated hole, and the bolt head is formed in the elongated hole. It is desirable to further include a restricting convex portion that restricts movement of the bolt in the axial direction when inserted.
If it does in this way, regardless of the space | interval of two faceplate parts, insertion of a fixed amount or more about a bolt head will be controlled by a control convex part, and it will not rattle in the axial direction of a bolt.

The present invention, as described above, the second surface plate portion between the web portion adjacent. Thus intermittently forming a long hole with its long side in the longitudinal direction of the vehicle, the site requiring the The hanging groove portion using the long hole can be easily formed without protruding from the second face plate portion. Moreover, the said long hole can be provided in arbitrary positions, without accompanying the increase in mass. If it is a long hole, it does not protrude from the second face plate portion, so there is no possibility of interfering with other members, and there is no need to remove the hanging groove portion by cutting, which is advantageous for cost reduction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view of a side structure of a railway vehicle according to an embodiment of the present invention, FIG. 2 is a perspective view of a railway vehicle using the side structure, and FIGS. It is sectional drawing of the part which becomes a downward window opening part, a fixed window opening part, and a door opening part, respectively.

  As shown in FIG. 1, a rail vehicle structure 1 includes left and right side structures 2L and 2R, a roof structure 3 connecting the upper ends of the left and right side structures 2L and 2R, and the left and right side structures 2L and 2R. And a frame 4 that connects the lower ends of 2R.

  For example, as shown in FIG. 2, the right side structure 2 </ b> R includes four extruded shape members 11 that are arranged in the vertical direction and joined to each other at the center in the vertical direction. Two extruded shapes 12, 13 having a shorter vertical length than the four extruded shapes 11 are joined to the upper and lower sides of the four extruded shapes 11, respectively. As shown in FIGS. 2 and 3 (a) to 3 (c), the side structure 2R is pushed out into the portions of the side structure 2R that become the descending window opening, the fixed window opening, and the door opening. A part of the profile is cut off to form openings S1, S2, and S3.

  As shown in FIG. 4, the extruded shape member 11 includes a central portion 11A having a double skin structure and end portions 11B having a single skin structure provided continuously on both sides thereof. The center portion 11A of the double skin structure includes a first face plate portion 11a that is the outer side of the vehicle body (surface exposed portion), a second face plate portion 11b that extends in parallel with the first face plate portion 11a and is the inner side of the vehicle body, A plurality of vertical web portions 11c extending in a direction perpendicular to the first and second face plate portions 11a and 11b and connecting them.

  And the edge part 11B of the single skin structure as an extension part of the 1st faceplate part 11a is continuously provided in the both sides of the center part 11A. The edges of the end portion 11B are joined together by, for example, friction stir welding as shown in FIG. Further, the extruded shape members 12 and 13 are joined in the same manner. These extruded shape members 11 to 13 are joined to form a panel that becomes the side structure 2R (or 2R) of the railway vehicle. W is a window glass.

  In other words, when one entire extruded shape member 11 is viewed, the first face plate portion 11a is wider than the second face plate portion 11b, and its edge portion is the first face plate of another extruded shape member. It is possible to join to the edge portion of the portion 11a, and by joining them, panels to be the side structures 2L and 2R are formed.

  Further, on the outer surface side of the second face plate portion 11b, it extends in the shape longitudinal direction at the center in the width direction (direction perpendicular to the shape longitudinal direction) of the corresponding portion between the adjacent vertical web portions 11c. A linear minute convex portion 11e (height of about 0.3 mm) that functions as a mark line is formed. The minute convex portion 11e serves as a mark when forming the long hole 11f for forming the hanging groove portion in the second face plate portion 11b by post-processing in the longitudinal direction of the shape member. As will be described later, the head T1 of the support bolt T for attaching the interior material is inserted into the long hole 11f. Note that, instead of the minute convex portion 11e that functions as a mark line, a minute concave portion may be used.

  In this way, for example, the extruded shape member 11 is attached by FSW bonding before or after the side structure 2L is formed or after bonding, and the minute projection 11e is used as a mark for attaching the interior material. By forming the long hole 11f for inserting the support bolt, that is, the long hole 11f capable of locking the head T1 of the support bolt T for attaching the interior material in the longitudinal direction of the shape member, a suspension groove portion that does not protrude inward is formed. can do.

  In particular, since the position of the suspension groove rail required for each vehicle system type is different, conventionally, the side structure is configured using different shapes, but in this embodiment, the suspension groove portion is formed by post-processing. Therefore, the above-described four extruded shape members 11 can be shared, which is advantageous in reducing costs.

  Each vertical web part 11c is formed in the intermediate part of the profile thickness direction so that the regulation convex part 11d extended in parallel with faceplate part 11a, 11b mutually opposes. The restricting projection 11d restricts the free movement of the support bolt T into which the head T1 is inserted through the long hole 11f in the bolt axis direction. That is, a function similar to that of a conventional hanging groove rail is exhibited in a portion in which the long hole 11f is formed by post-processing by the two adjacent vertical web portions 11c and the two restricting convex portions 11d provided thereon. It will be.

  Further, the end portion of the center portion 11A of the double skin structure is formed with a step portion 11g on the second face plate portion 11b side, and the edge of the face plate portion 11b ′ forming the step portion 11g is provided with the inclined web portion 11h. And is coupled to the first face plate portion 11a.

  Such a stepped portion 11g is provided with a reinforcing plate 21 (see FIG. 5) that is a flat plate between the stepped portion of another extruded shape member joined when the panel is formed. By providing this reinforcing plate 21, the end portion 11B of the single skin structure can be used as a double skin, and the rigidity of the vehicle body can be increased as necessary. For example, as shown in FIGS. 6 and 7, in door pockets U1 and U2 adjacent to the door opening S3, between the entrance pillar 22 and the door bottom pillar 23, the entrance pillar 22 and the pillar 24 provided in the opening S2 In the space between the double skin structures, the reinforcing plate 21 is provided so as to be bridged between the step portions 11g with respect to the portion having the single skin structure (joint portion of the extruded shape member). It is designed to increase.

In this side structure, for example, the right side structure 2R, as shown in FIG. 8 (a), an interior material is attached to the second face plate portion 11b in a portion corresponding to the space between two adjacent vertical web portions 11c. By forming the long hole 11f into which the support bolt T is inserted by post-processing in the longitudinal direction of the shape member, the suspension groove portion can be formed. This hanging groove portion does not protrude from the surface of the second face plate portion 11b.

  As is well known, the support bolt T inserted into the long hole 11f includes a head portion T1 having a substantially rectangular shape and a screw portion. The head has a width that can pass through the long hole, and has a length that makes it impossible to pass through the long hole in a direction orthogonal to the width. Therefore, by inserting the head of the support bolt into the suspension groove through the long hole and rotating the entire support bolt in one direction in the inserted state, as shown in FIG. Locked in the suspension groove, further rotation in the one direction is restricted, and the interior material can be attached using nuts, washers and the like.

  For example, the case where the seat 32 (refer FIG. 10) as an interior material is attached is demonstrated. For example, as shown in the lower right side of FIG. 9, the long hole 11f into which the head of the support bolt T is inserted is initially provided at a predetermined position. As shown, by inserting and rotating the head T1 of the support bolt T, the support bolt T is locked to the suspension groove.

  Then, as shown on the left side of FIG. 9, the support frame 31 for seat mounting is attached to the inside of the side structure 2 </ b> R using the support bolt T. As shown in FIG. 10, a support bracket 33 that supports the left side of the seat 32 is attached to the support frame 31, and a support bracket 34 that supports the right side of the seat 32 is attached to the underframe side. The mounting portions 32L and 32R of the seat 32 are attached to the support brackets 33 and 34, and the seat 32 is attached at a predetermined position. The support frame 31 is also used for attaching other equipment (for example, windows and linings) in addition to the seat.

  By the way, since the opening S3 serving as the door opening has a rectangular shape in a side view, stress concentrates on the corners of the opening, which may be a weak point in strength.

  Therefore, as shown in FIG. 11, at the lower corner of the opening S3 serving as the door opening, a part of the extruded shape 13 is notched so that the extruded shape 13 is disposed so as to straddle the open corner. The corner of the opening S3 is formed as the curved corner R by the extruded shape member 13 itself.

  That is, the lower end portion of the entrance post 22 is partly cut off from the lower portion of the surface side to form a cutout portion 22a, and the thick face plate portion 13aa of the face plate portion 13a of the extruded shape member 13 is formed in that portion. They are fitted and joined. At the lower corner of the door opening, the outer surface of the face plate portion 13aa of the extruded shape member 13 continues to the outer surface of the upper inlet column 22 to form the outer surface of the side structure 2R. Yes.

  The thickness of the face plate portion 13aa of the extruded shape member 13 constituting the opening corner is formed to be thicker than the face plate portion 13a of other portions in order to ensure necessary rigidity.

  At this time, since the extruded shape member 13 (base material) itself forms the curved corner of the opening, the face plate portion 13aa of the extruded shape member 13 of this portion is insufficient in rigidity at a normal plate thickness. In this way, the face plate at the position corresponding to the curved corner is thickened. In this way, since the opening corners in the door opening where stress is concentrated serve as a base material, the fatigue strength can be improved with a smaller plate thickness than when a thick reinforcing plate is attached by welding. Therefore, since it is not necessary to provide a thick reinforcing plate by welding, there is no welding defect and an unexpected situation can be avoided.

  Further, the upper corner of the opening S3 serving as the door opening and the upper and lower corners of the openings S1 and S2 serving as the window opening may be configured in the same manner as the lower corner of the opening S3 serving as the door opening described above. Needless to say, you can.

  In the above-described embodiment, the embodiment in which the extruded shape member is used for the side structure has been described. However, the present invention is not limited thereto, and can of course be used for a floor board or a roof structure. is there.

It is a cross-sectional view of the side structure of a railway vehicle which is an embodiment of the present invention. It is a perspective view of a railway vehicle using the side structure. (A) (b) (c) is sectional drawing of the part used as a fall window opening part, a fixed window opening part, and a door opening part, respectively. It is sectional drawing of an extruded shape member. It is explanatory drawing of the junction part of an extruded shape member. (A) is the figure which looked at the side structure from the vehicle body inner side, (b) is sectional drawing in the AA of FIG. 6 (a). It is an enlarged view of the G section of Drawing 6 (b). (A) is explanatory drawing of the attachment state of a support bolt, (b) is sectional drawing in the BB line of Fig.8 (a). It is explanatory drawing of the attachment procedure of the seat which is interior goods. It is sectional drawing of the structure which shows the state in which the said seat was attached. It is a perspective view which shows the state which looked at the detail of N part of Fig.6 (a) from the outer side of the vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rail vehicle structure 2L, 2R Side structure 11, 12, 13 Extruded shape member 11A Central part 11B End part 11a, 11b Face plate part 11c Vertical web part 11d Restriction convex part 11e Micro convex part 11f Long hole 13a, 13aa Face plate part T support bolt T1 head

Claims (6)

A first face plate portion provided outside the railway vehicle and extending in a longitudinal direction of the vehicle; a second face plate portion arranged in parallel with the first face plate portion and provided inside the rail vehicle; A plurality of web portions connecting the first face plate portion and the second face plate portion, and an extruded profile extending in the vehicle longitudinal direction;
A plurality of the extruded profiles are arranged in the vehicle vertical direction to form a part of a side structure of a railway vehicle;
A railcar structure, further comprising a long hole intermittently formed in a second face plate portion of at least one extruded shape member among the plurality of extruded shape members and having a long side in a vehicle longitudinal direction.
  The said long hole is intermittently formed in the said 2nd faceplate part of the said extrusion shape member arrange | positioned at the vehicle lower part among the said extrusion shape members arrange | positioned at the vehicle up-down direction. Railway vehicle structure.   The railway vehicle structure according to claim 1, wherein at least four of the extruded shape members are arranged adjacent to each other in the vehicle vertical direction to form a part of a side structure of the railway vehicle. A bolt head having a long side and a short side can be inserted into the long hole,
The length of the short side of the long hole is longer than the length of the short side of the bolt head, and shorter than the length of the long side of the bolt head,
The structure for a railway vehicle according to claim 1, wherein a length of a long side of the long hole is longer than a length of a long side of the bolt head. The railway vehicle structure according to claim 1, wherein a line as a mark extending in a longitudinal direction of the vehicle is formed on a surface of the second face plate portion at a substantially center between the adjacent web portions. A bolt head can be inserted into the elongated hole,
The railcar structure according to claim 1, further comprising a restriction convex portion that is formed on the web portion and restricts movement of the bolt in the axial direction when the bolt head is inserted into the elongated hole. .

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