JP2013052744A - Body internal structure of railway vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body internal structure of a railway vehicle that secures a work space for spot welding a cant rail and a gusset.SOLUTION: The internal body structure 20 of a railway vehicle includes: a gusset 27 which is arranged with one end included into a plurality of vertical crosspieces 25, and the other end facing a section of the cant rail 23 which is joined to an inside surface of a roof body part 21; a suspension groove 28, configured to support a side panel which is provided on the inside surface of the roof body part 21 to shield interior equipment from a user, and formed to have a substantially upside-down hat shape in its cross-section; and a baggage shelf attaching part 34, which is fixed to one of a plurality of horizontal crosspieces 26 and allows a baggage shelf 37 to be attached thereto. The work space for using a spot welding gun to spot weld the section of the cant rail 23 to the gusset 27 facing the same is secured by being defined from the gusset 27, the suspension groove 28, and the baggage shelf attaching part 34.

Description

  The present invention relates to a structure internal structure of a railway vehicle.

  There are several places on a railway vehicle where the structure parts are welded together using members. Generally, arc welding, spot welding, and the like are known as this welding method. Which welding method is appropriate depends on the material of the member to be welded. For example, when an aluminum alloy is used as the material, the aluminum alloy has high electrical conductivity. In many cases, arc welding is used for melting and joining.

  In addition, as a technology related to the vehicle body structure of a railway vehicle, the load carrying tray is integrated from both the reinforcing material of the side structure part to the vicinity of the corner part of the reinforcing material of the roof structure part, and the weight is obtained by connecting the reinforcing materials. There is known one that can sufficiently reinforce the space between the side structure part and the roof structure part without suppressing the increase in appearance and without deteriorating the appearance of the interior (for example, see Patent Document 1).

JP 2010-143354 A

  In recent years, stainless steel is sometimes used instead of an aluminum alloy as a material for members of a railway vehicle. This is because the rust-proofing effect is greater than that of an aluminum alloy, and for example, a member exposed to the outside such as a long digit has the merit of employing stainless steel. In this way, when stainless steel is used as the material of the member, considering which welding method is appropriate, since stainless steel has lower electrical conductivity than aluminum alloy, pressure is applied to the joint site rather than arc welding. However, the conclusion that it is desirable to use spot welding which welds by applying a large current is obtained.

  However, spot welding requires a certain working space because the tip of the spot welding gun needs to abut against the stainless steel. However, various interior fittings are provided inside the structure of the railway vehicle, and it is difficult to secure a work space for spot welding.

  Here, a case where a conventional long digit and a gusset are welded will be described with reference to FIG. 3. In the vicinity of the long digit 1, a curtain plate holder 3 fixed to the inner surface of the long digit 1 and the roof structure portion 2. And a gusset 5 fixed to the long digit 1 and the longitudinal bone 4 of the side structure part, and a shelf shelf bone 8 fixed to the lining part 7 provided on the bottom surface side of the curtain plate receiver 3 and the lateral bone 6 A ceiling panel 9 that covers these interior fittings and a load shelf receiver 10 that is fixed to the load shelf support 8 are provided. When various interior fittings are arranged as described above, if the long digit 1 and the gusset 5 are spot welded, the curtain plate support 3 becomes an obstacle, and it is difficult to secure a work space for arranging the spot welding gun. I got it.

  Moreover, since the technique of the said patent document 1 does not assume carrying out spot welding of long digits and a gusset, there is no working space which arrange | positions a spot welding gun.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a structure internal structure of a railway vehicle that secures a work space for spot welding a long digit and a gusset.

  The present invention has a roof structure part and a side structure part having a plurality of longitudinal bones and transverse bones, and joins the inner side surface of the roof structure part and the upper surface of the side structure part using long digits. A plurality of gussets having an internal structure, one end being attached to each of a plurality of vertical bones and the other end being opposed to a region of the long digits joined to the inner surface of the roof structure, and the roof structure A hanging groove that is provided on the inner surface of the unit and supports a side panel that shields the interior fitting, and a cargo rack mounting portion that is attached to one of the plurality of transverse bones and can support the cargo rack, The working space of the spot welding gun for spot welding the area where the long digit and the gusset face each other is configured to be secured by a space defined based on the gusset, the hanging groove and the load shelf mounting portion. It is what.

  According to this configuration, it is possible to provide a work space for spot welding the long digits and the gussets when manufacturing the railway vehicle. Specifically, as shown in FIG. 3, conventionally, since it is necessary to fix the shelf rack between the horizontal bone and the curtain holder, it is necessary to secure a certain size for the curtain holder. . However, the structure internal structure of the railway vehicle according to the present invention is configured such that the cargo rack mounting portion is attached to the horizontal bone and the cargo rack can be attached to the cargo rack mounting portion, and a cargo rack receiving bone is not required. It is said. Therefore, it is not necessary to attach a shelf shelf to the curtain holder, and the curtain holder can be made compact. Therefore, as a configuration corresponding to the curtain plate holder, for example, a more compact hanging groove formed in a substantially inverted hat shape can be used. And it becomes possible to ensure the work space of the spot welding gun for spot welding the area | region where a long digit and a gusset oppose with the space demarcated based on a gusset, a hanging groove, and a shelf mounting part. Since a wide working space can be ensured in this way, spot welding between the gusset and the long digit can be easily performed. Furthermore, since the load shelf mounting portion and the load shelf are attached using the horizontal bone, a conventional structure of a railway vehicle can be used, and an increase in cost due to a design change can be suppressed.

  Further, in the structure internal structure of the railway vehicle according to the present invention, the rail vehicle is provided with a support member that is attached to the hanging groove and supports the base end portion of the side panel, and the side panel includes a side ceiling panel that shields the interior fitting of the ceiling portion A side camo panel that shields the interior of the camo part, the base end supports one end of the side ceiling panel and supports one end of the side ceiling camo for rotation, and the side camo panel has the other end It may be configured to be detachably attached to the load shelf attaching portion and configured to be openable and closable with the above-described one end as a fulcrum.

  Conventionally, as shown in FIG. 3, the ceiling part and the camo part of the interior are shielded by a single ceiling panel. For example, when performing maintenance work such as wiring shielded by the ceiling panel, the ceiling part must be It was necessary to remove the panel, which was a very heavy work. However, according to the above configuration, the side camo panel can be opened and closed, so that the work load can be reduced with respect to maintenance work such as wiring hidden by the side camo panel.

  Furthermore, in the structure internal structure of the railway vehicle according to the present invention, it is provided with an attachment mechanism for attaching the load shelf to the load shelf attachment portion, and this attachment mechanism is shielded from the user by the front portion of the load shelf attachment portion. Also good.

  According to this configuration, it is not necessary to consider the appearance of the attachment mechanism for attaching the cargo rack to the cargo rack mounting portion. In other words, when the mounting mechanism is composed of, for example, a suspension bolt, the appearance of the appearance such that the screw head pops out, but even if such an appearance does not occur, it is shielded from the user by the front surface of the load rack mounting portion. can do. Moreover, when the said attachment mechanism is comprised with a suspension bolt, the drilling tap operation | work which arises from the need to consider appearance becomes unnecessary and can reduce an operator's work process.

  Furthermore, the attachment mechanism may be configured by a plate portion erected along the vertical direction included in the load shelf attachment portion and a suspension bolt that fixes the load shelf to the plate portion.

  Conventionally, as shown in FIG. 3, the load shelf is attached to the load shelf frame, and this load frame frame is arranged obliquely across the lining portion and the curtain plate support. For this reason, the surface which attaches a load shelf is slanting, and adjustment of the height and inclination which attaches a load shelf was very complicated. However, according to the said structure, since the board part of the load shelf attaching part which attaches a load shelf is standingly arranged along the perpendicular direction, the height and inclination which attach a load shelf can be adjusted easily.

  ADVANTAGE OF THE INVENTION According to this invention, the structure internal structure of the railway vehicle which ensured the working space for spot welding a long digit and a gusset can be provided.

It is a figure which shows a part of cross section of the structure internal structure in which the side camoy panel which concerns on embodiment of this invention is a closed state. It is a figure which shows a part of cross section of the structure internal structure in which the side camoy panel which concerns on the embodiment is an open state. It is a figure which shows the structure internal structure of the conventional railway vehicle.

  FIG. 1 is a view showing a part of a cross section of a structure internal structure of a railway vehicle according to the present invention. In the figure, the portions according to the present invention are mainly shown, and the other portions are not shown for convenience of explanation.

  The railway vehicle structure internal structure 20 includes a roof structure part 21 and a side structure part 22, and the inner side surface of the roof structure part 21 and the upper surface of the side structure part 22 are joined using a long digit 23. Yes. More specifically, the long digits 23 are configured by a portion joined to the inner surface of the roof structure portion 21 and a portion that passes through the end portion of the roof structure portion 21 and is joined to the upper surface of the side structure portion 22. ing. Further, on the upper side of the side structure part 22 and the upper side of the roof structure part 21, a roof member 24 that constitutes a rain gutter for waterproofing rainwater and the like and draining the rainwater and the like is provided.

  The side structure 22 has a plurality of longitudinal bones 25 and transverse bones 26. The plurality of lateral bones 26 are arranged so as to be parallel to the longitudinal direction of the railway vehicle so that the plurality of longitudinal bones 25 are parallel to the lateral direction of the railway vehicle (not shown). The strength in the vertical direction and the horizontal direction of the portion 22 is ensured.

  The gusset 27 is a member that joins the side structure portion 22 and the roof structure portion 21, and is configured such that one end is incorporated into the plurality of vertical bones 25 and the other end extends in the direction of the roof structure portion 21. Has been. It arrange | positions so that the area | region joined to the inner surface of the roof structure part 21 among this extended other end and the above-mentioned long digits 23 may oppose.

  The hanging groove 28 is provided on the inner surface of the roof structure part 21 and is configured to support a side panel 29 that shields the interior fitting from the user. More specifically, the suspension groove 28 is provided at a position advanced from the region where the gusset 27 and the long digit 23 face each other along the inner surface of the roof structure portion 21 by a predetermined distance. The suspension groove 28 has a substantially inverted hat shape in cross section.

  The suspension groove 28 supports the above-described side panel 29 via a support member 30 fixed to the lower flat portion of the inverted hat shape. The support member 30 is also used for placing wirings 31 and the like arranged in the ceiling part and the camo part, respectively.

  The side panel 29 includes a side ceiling panel 32 that shields the interior fitting of the ceiling portion from the user and a side camoy panel 33 that shields the interior fitting of the camo portion from the user. The base end portion of the side panel 29 supports one end of the side ceiling panel 32 and supports one end of the side camo panel 33 so as to be rotatable. Furthermore, the other end of the side camo panel 33 is detachably attached to the load shelf attachment part 34. Therefore, the side camo panel 33 is configured to be openable and closable with the above-described one end as a fulcrum. FIG. 2 shows a case where the side camo panel 33 is opened in the structure internal structure 20 of the railway vehicle.

  A load shelf mounting portion 34 is attached to one of the plurality of horizontal bones 26, in this embodiment, the horizontal bone 26 located second from the top. The load shelf attaching part 34 is composed of a lining part 35 and a side camo panel receiving part 36.

  The lining portion 35 has a U-shaped cross section, and is attached so that the transverse bone 26 is sandwiched between the U-shaped tip portions. The side camo panel receiving portion 36 is provided so as to be fixed to a part of the upper side of the lining 35 and a part of the lining surface 35a.

  The side camo panel receiving portion 36 has a plate portion 36 a erected along the vertical direction from the upper surface of the lining portion 35 on the side structure portion 22 side. The plate portion 36a is provided with two sets of fixing mechanisms by the suspension bolts 36b up and down, and is configured so that the lining portion 35, the plate portion 36a and the load shelf 37 are fixed by the lower suspension bolts 36b. The plate portion 36a and the load shelf 37 are fixed by the upper suspension bolt 36b. These constitute the load shelf mounting mechanism. Further, this attachment mechanism is shielded from the user by the front surface of the side camo panel receiving portion 36.

  According to the railway vehicle structure internal structure 20 configured as described above, it is possible to provide a work space for spot welding the long digits 23 and the gussets 27 when the railway vehicle is manufactured. Specifically, the structure internal structure 20 of the railway vehicle is configured such that a loading rack mounting portion 34 is fixed to the lateral bone 26 and a loading rack 37 can be mounted on the loading rack mounting portion 34. The configuration is not required. Accordingly, it is not necessary to fix the load shelf frame to the curtain plate holder as in the prior art, and the suspension groove 28 formed in a substantially inverted hat shape that is more compact than the curtain plate holder is used as a configuration corresponding to the curtain plate holder. be able to. A working space of the spot welding gun for spot welding a region where the long digit 23 and the gusset 27 are opposed to each other is secured by a space defined based on the gusset 27, the hanging groove 28 and the load shelf mounting portion 34. Is possible. Since the work space can be secured in this manner, spot welding between the long digits 23 and the gusset 27 can be easily performed.

  Moreover, since the load shelf attaching part 34 and the load shelf 37 are attached using the horizontal bone 26, the structure of a conventional railway vehicle can be used, and an increase in cost associated with a design change can be suppressed.

  Further, since the side camo panel 33 can be opened and closed, the work load can be reduced with respect to the maintenance work of the wiring 31 and the like hidden by the side camo panel 33.

  Further, the suspension bolt 36b (attachment mechanism) for attaching the cargo rack 37 to the cargo rack mounting portion 34 is disposed in the cargo rack mounting portion 34 and is shielded from the user by the front portion of the cargo rack mounting portion 34. There is no need to consider the appearance of the mechanism. Moreover, when the said attachment mechanism is comprised with the suspension bolt 36b, a drilling tap operation becomes unnecessary and can reduce an operator's work process.

  Furthermore, since the load shelf 37 is attached to the plate portion 36a erected along the vertical direction from the upper surface of the lining portion 35, the height and inclination of attaching the load shelf 37 can be easily adjusted.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied to a structure internal structure of a railway vehicle that needs to secure a wide work space for spot welding a long digit and a gusset.

20 ... Rail vehicle structure internal structure 21 ... Roof structure part 22 ... Side structure part 23 ... Long length 24 ... Roof member 25 ... Vertical bone 26 ... Horizontal bone 27 .... Gusset 28 ... Suspension groove 29 ... Side panel 30 ... Supporting member 31 ... Wiring 32 ... Side ceiling panel 33 ... Side camo panel 34 ... Loading rack attachment part 35 ...・ Lining 36 ... Side camo panel receiving part 36a ... Plate part 36b ... Suspension bolt 37 ... Loading rack

Claims (4)

An internal structure of a railway vehicle having a roof structure part and side structure parts each having a plurality of vertical and horizontal bones, and joining the inner side surface of the roof structure part and the upper surface of the side structure part using a long digit Because
A plurality of gussets, one end of which is attached to each of the plurality of longitudinal bones, and the other end of which is arranged so as to face a region joined to the inner surface of the roof structure portion of the long digits;
A hanging groove that is provided on the inner surface of the roof structure part and supports a side panel that shields the interior fitting,
A cargo rack mounting portion attached to one of the plurality of transverse bones and capable of supporting the cargo rack;
With
A work space of a spot welding gun for spot welding a region where the long digit and the gusset face each other is configured to be secured in a space defined by the gusset, the suspension groove, and the load shelf mounting portion. A structure internal structure of a railway vehicle characterized by the above. A support member that is attached to the suspension groove and supports the base end of the side panel,
The side panel includes a side ceiling panel that shields the interior fixture of the ceiling portion, and a side camo panel that shields the interior fixture of the camo portion,
The base end portion holds one end of the side ceiling panel and rotatably supports one end of the side ceiling camo,
2. The structure internal structure of a railway vehicle according to claim 1, wherein the side camo panel is configured such that the other end is detachably attached to the load shelf attachment part and can be opened and closed with the one end as a fulcrum. An attachment mechanism for attaching the load shelf to the load shelf attachment portion;
3. The structure internal structure of a railway vehicle according to claim 1, wherein the attachment mechanism is configured to be shielded by a front surface portion of the load shelf attachment portion.   The said attachment mechanism is comprised from the board part erected along the perpendicular direction contained in the said shelf mounting part, and the suspension bolt which fixes the said shelf to the said board part. The internal structure of the railway vehicle structure described in 1.

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