Interior structure for railway vehicle
An interior structure is provided that is lightweight and is capable of beautifully finishing a surface on a cabin side. An interior structure 100 of the present invention includes a plurality of interior panels 1 forming the inner walls of a cabin and a support means 5 for supporting the interior panel 1 . The interior panel 1 has a composite plate 4 including two metal plates 2 and a non-foam resin layer 3 disposed between the two metal plates 2.
1. An interior structure for a railway vehicle comprising:
a plurality of interior panels forming inner walls of a cabin, each of the interior panels having a composite plate including two metal plates and a non-foam resin layer disposed between the two metal plates; and
support means for supporting the interior panels, the support means including, for each of the interior panels:
a support member that couples the interior panel and a carbody to each other; and
a first fastening member that fastens the support member to the interior panel, the first fastening member extending through the support member and being inserted into the interior panel from a surface of the interior panel on a side opposite to the cabin, wherein a tip end of the first fastening member is positioned in the resin layer and does not penetrate through a surface of the interior panel that faces the cabin.
2. The interior structure for the railway vehicle according to claim 1 , wherein the two metal plates are an aluminum plate or an aluminum alloy plate, each having a thickness of 0.1 mm to 1.0 mm, and the composite plate has a thickness of 2 to 10 mm.
3. The interior structure for the railway vehicle according to claim 1 , wherein
the support member is disposed at a boundary between a first interior panel and a second interior panel that are adjacent to each other, and includes:
a first support member attached to the first interior panel; and
a second support member attached to the first support member and to the second interior panel.
4. The interior structure for the railway vehicle according to claim 3 , wherein:
the support means further includes a fastening bolt that fastens the support member to the carbody,
a first bolt hole into which the fastening bolt is inserted is formed in the first support member,
a second bolt hole into which the fastening bolt is inserted is formed in the second support member, and
the first bolt hole and the second bolt hole are coaxial with each other in a state where the first support member and the second support member are combined at predetermined relative positions.
5. The interior structure of the railway vehicle according to claim 4 , wherein:
a gap is formed between the first interior panel and the second interior panel; panel, and
a size of the gap is at least greater than a size of the first bolt hole and a size of the second bolt hole.
6. The interior structure of the railway vehicle according to claim 3 , wherein:
the first support member is fastened to the carbody and includes a first engagement portion,
the second support member includes a second engagement portion which is engageable with the first engagement portion, and
the first support member and the second support member are fastened together by the second engagement portion being inserted into the first engagement portion.
7. The interior structure for the railway vehicle according to claim 6 , wherein:
the first engagement portion has a groove shape that is open towards the second engagement portion, and
the second engagement portion has a projecting shape that projects towards the first engagement portion.
8. The interior structure for the railway vehicle according to claim 1 , further comprising:
reinforcement means including a reinforcement member that reinforces the interior panel and a second fastening member that fastens the reinforcement member to the interior panel, wherein
the second fastening member extends through the reinforcement member and is inserted into the interior panel from the surface of the interior panel on the side opposite to the cabin, such that a tip end of the second fastening member is positioned in the resin layer.
9. The interior structure for the railway vehicle according to claim 8 , further comprising:
cover means including a cover member that covers a gap formed between a first interior panel and a second interior panel from the cabin side, and a third fastening member that fastens the cover member to the first interior panel and the second interior panel, wherein
the cover member includes:
a cover portion positioned on the cabin side of the interior panel; and
a mounting portion coupled with the cover portion and positioned on a side of the interior panel which is opposite to the cabin side, wherein
the third fastening member extends through the mounting portion and is inserted into the interior panel from the surface of the interior panel on the side opposite to the cabin, such that a tip end of the third fastening member is positioned in the resin layer.