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JP2015030340A - Collision energy absorber for railway vehicle - Google Patents

Collision energy absorber for railway vehicle Download PDF

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JP2015030340A
JP2015030340A JP2013160177A JP2013160177A JP2015030340A JP 2015030340 A JP2015030340 A JP 2015030340A JP 2013160177 A JP2013160177 A JP 2013160177A JP 2013160177 A JP2013160177 A JP 2013160177A JP 2015030340 A JP2015030340 A JP 2015030340A
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energy absorber
plate
railway vehicle
intermediate plate
collision
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JP6152007B2 (en
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佐野　淳
Atsushi Sano
淳 佐野
直朗 川上
Tadao Kawakami
直朗 川上
吉田　直弘
Naohiro Yoshida
直弘 吉田
晋一郎 畑
Shinichiro Hata
晋一郎 畑
誠一郎 矢木
Seiichiro Yagi
誠一郎 矢木
雅幸 冨澤
Masayuki Tomizawa
雅幸 冨澤
啓 内田
Hiroshi Uchida
啓 内田
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Kawasaki Heavy Industries Ltd
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Kawasaki Heavy Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a collision energy absorber for a railway vehicle that can achieve high effective compressibility.SOLUTION: A collision energy absorber 1A for a railway vehicle includes a first energy absorbing body 2 and a second energy absorbing body 3 that are aligned in a vehicle longitudinal direction by interposing an intermediate plate 4. The first energy absorbing body 2 incorporates multiple cylindrical bodies 21 arranged so as to be spaced apart from each other. The second energy absorbing body 3 includes at least one partition wall 31 raised on the intermediate plate 4 so as not to be overlapped with the cylindrical body 21 in the vehicle longitudinal direction.

Description

本発明は、鉄道車両用衝突エネルギー吸収装置に関する。   The present invention relates to a collision energy absorbing device for a railway vehicle.

従来から、鉄道車両では、衝突エネルギー吸収装置が用いられている。例えば、特許文献１には、継ぎ板を挟んで車両長手方向に並べられた２つのエネルギー吸収部材を備えた鉄道車両用衝突エネルギー吸収装置が開示されている。   Conventionally, collision energy absorbing devices have been used in railway vehicles. For example, Patent Literature 1 discloses a collision energy absorbing device for a railway vehicle that includes two energy absorbing members arranged in the vehicle longitudinal direction with a joint plate interposed therebetween.

各エネルギー吸収部材は、車両長手方向に延びる断面八角状の筒状体であり、衝突時には蛇腹状に変形しながら軸方向に圧壊される。より詳しくは、エネルギー吸収部材は、外管と内管の二重管構造を有しており、外管と内管の頂点同士が径方向壁によって連結されている。   Each energy absorbing member is a cylindrical body having an octagonal cross section extending in the longitudinal direction of the vehicle and is crushed in the axial direction while deforming into a bellows shape at the time of collision. More specifically, the energy absorbing member has a double tube structure of an outer tube and an inner tube, and apexes of the outer tube and the inner tube are connected by a radial wall.

特許第４９４３９０５号公報Japanese Patent No. 4943905

しかしながら、エネルギー吸収部材として機能する筒状体は、衝突時には上述したように蛇腹状に変形する、換言すれば圧壊により形成される折れ重なり部が軸方向に並ぶように変形するため、衝突エネルギーの吸収に用いられる有効ストロークはエネルギー吸収部材の全長の６０〜６５％程度である。特許文献１に開示された衝突エネルギー吸収装置では同じ構造のエネルギー吸収部材が直列に並んでいるため、装置全体の有効ストロークも装置全長の６０〜６５％である。限られた空間でより多くの衝突エネルギーを吸収するには、装置全長に対する有効ストロークの割合である有効圧縮率をより高くすることが望まれる。   However, the cylindrical body functioning as an energy absorbing member is deformed into a bellows shape as described above at the time of collision, in other words, the folded portion formed by crushing is deformed so as to be aligned in the axial direction. The effective stroke used for absorption is about 60 to 65% of the total length of the energy absorbing member. In the collision energy absorbing device disclosed in Patent Document 1, since energy absorbing members having the same structure are arranged in series, the effective stroke of the entire device is 60 to 65% of the total length of the device. In order to absorb more collision energy in a limited space, it is desirable to increase the effective compression ratio, which is the ratio of the effective stroke to the entire device length.

そこで、本発明は、有効圧縮率を高くすることができる鉄道車両用衝突エネルギー吸収装置を提供することを目的とする。   Then, an object of this invention is to provide the collision energy absorption apparatus for rail vehicles which can make an effective compression rate high.

前記課題を解決するために、本発明の鉄道車両用衝突エネルギー吸収装置は、中間プレートを挟んで車両長手方向に並べられた、衝突時に圧壊される第１エネルギー吸収体および第２エネルギー吸収体を備え、前記第１エネルギー吸収体は、互いに離間するように配置された複数の筒状体を含み、前記第２エネルギー吸収体は、前記中間プレート上に、車両長手方向において前記複数の筒状体と重ならないように立てられた少なくとも１つの隔壁を含む、ことを特徴とする。   In order to solve the above problems, a collision energy absorbing device for a railway vehicle according to the present invention includes a first energy absorber and a second energy absorber that are arranged in the longitudinal direction of the vehicle with an intermediate plate interposed therebetween and are crushed during a collision. The first energy absorber includes a plurality of cylindrical bodies arranged so as to be separated from each other, and the second energy absorber is disposed on the intermediate plate in the longitudinal direction of the vehicle. Including at least one partition wall standing so as not to overlap.

上記の構成によれば、衝突時には第２エネルギー吸収体の隔壁が第１エネルギー吸収体の筒状体間に形成される隙間に入り込むため、装置全体としての有効ストロークを大きくすることができる。その結果、装置全長に対する有効ストロークの割合である有効圧縮率を高くすることができる。   According to said structure, since the partition of a 2nd energy absorber enters into the clearance gap formed between the cylindrical bodies of a 1st energy absorber at the time of a collision, the effective stroke as the whole apparatus can be enlarged. As a result, the effective compression ratio, which is the ratio of the effective stroke to the entire device length, can be increased.

本発明によれば、有効圧縮率を高くすることができる鉄道車両用衝突エネルギー吸収装置を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the collision energy absorption apparatus for rail vehicles which can make an effective compression rate high can be provided.

一実施形態に係る鉄道車両用衝突エネルギー吸収装置の側面図である。It is a side view of the collision energy absorption device for rail vehicles concerning one embodiment. （ａ）〜（ｃ）はそれぞれ図１のIIＡ−IIＡ線〜IIＣ−IIＣ線に沿った断面図である。(A)-(c) is sectional drawing along the IIA-IIA line | wire-IIC-IIC line | wire of FIG. 1, respectively. （ａ）は図１に示す衝突エネルギー吸収装置の衝突変形後の状態を示す斜視図、（ｂ）は（ａ）のIIIＢ−IIIＢ線に沿った断面図である。(A) is a perspective view which shows the state after the collision deformation | transformation of the collision energy absorption apparatus shown in FIG. 1, (b) is sectional drawing along the IIIB-IIIB line | wire of (a). 図１に示す衝突エネルギー吸収装置の荷重と圧縮率の関係を示すグラフである。It is a graph which shows the relationship between the load of a collision energy absorption apparatus shown in FIG. 1, and a compressibility. （ａ）および（ｂ）はそれぞれ変形例の鉄道車両用衝突エネルギー吸収装置の正面図および側面図である。(A) And (b) is the front view and side view of the collision energy absorption device for rail vehicles of a modification, respectively. （ａ）および（ｂ）はそれぞれ他の変形例の鉄道車両用衝突エネルギー吸収装置の正面図および側面図である。(A) And (b) is the front view and side view of the collision energy absorption apparatus for rail vehicles of another modification, respectively.

図１および図２（ａ）〜（ｃ）に、一実施形態に係る鉄道車両用衝突エネルギー吸収装置１Ａを示す。衝突エネルギー吸収装置１Ａは、中間プレート４と、この中間プレート４を挟んで車両長手方向に並べられた第１エネルギー吸収体２および第２エネルギー吸収体３を備えている。また、衝突エネルギー吸収装置１Ａは、中間プレート４と共に第１エネルギー吸収体２を挟持する第１プレート５と、中間プレート４と共に第２エネルギー吸収体３を挟持する第２プレート６を備えている。   1 and 2 (a) to 2 (c) show a railcar collision energy absorbing device 1A according to an embodiment. The collision energy absorbing device 1A includes an intermediate plate 4 and a first energy absorber 2 and a second energy absorber 3 arranged in the longitudinal direction of the vehicle with the intermediate plate 4 interposed therebetween. The collision energy absorbing device 1 </ b> A includes a first plate 5 that sandwiches the first energy absorber 2 together with the intermediate plate 4, and a second plate 6 that sandwiches the second energy absorber 3 together with the intermediate plate 4.

本実施形態では、第１プレート５が鉄道車両の主構造物に取り付けられる。このため、鉄道車両の進行方向において、第２エネルギー吸収体３が前方（車両長手方向の外方側）、第１エネルギー吸収体２が後方（車両長手方向の内方側）に位置する。ただし、第２プレート６が鉄道車両の主構造物に取り付けられ、鉄道車両の進行方向において第１エネルギー吸収体２が前方、第２エネルギー吸収体３が後方に位置してもよい。   In the present embodiment, the first plate 5 is attached to the main structure of the railway vehicle. For this reason, in the traveling direction of the railway vehicle, the second energy absorber 3 is positioned forward (outside in the vehicle longitudinal direction), and the first energy absorber 2 is positioned rearward (inward in the vehicle longitudinal direction). However, the 2nd plate 6 may be attached to the main structure of a railway vehicle, and the 1st energy absorber 2 may be located ahead and the 2nd energy absorber 3 in the back in the advancing direction of a railway vehicle.

第１エネルギー吸収体２および第２エネルギー吸収体３は、共に衝突時に圧壊されて座屈により衝突エネルギーを吸収する。本実施形態では、第１エネルギー吸収体２および第２エネルギー吸収体３は、共に、上下対象かつ左右対象に構成されている。   The first energy absorber 2 and the second energy absorber 3 are both crushed during a collision and absorb the collision energy by buckling. In the present embodiment, the first energy absorber 2 and the second energy absorber 3 are both configured as a vertical object and a horizontal object.

より詳しくは、第１エネルギー吸収体２は、互いに離間するように配置された複数の筒状体２１を含む。各筒状体２１の前端部は例えば溶接により中間プレート４に固定されており、各筒状体２１の後端部は例えば溶接により第１プレート５に固定されている。筒状体２１のプレート（４または５）への固定方法としては、溶接以外にも、例えば接着やボルト止めなどを利用できる。   More specifically, the first energy absorber 2 includes a plurality of cylindrical bodies 21 arranged so as to be separated from each other. The front end portion of each cylindrical body 21 is fixed to the intermediate plate 4 by, for example, welding, and the rear end portion of each cylindrical body 21 is fixed to the first plate 5 by, for example, welding. As a method of fixing the cylindrical body 21 to the plate (4 or 5), for example, adhesion or bolting can be used in addition to welding.

本実施形態では、４つの筒状体２１が、中間プレート４の中心を取り巻くようにマトリクス状に配置されている。ただし、筒状体２１の数は必ずしも４つである必要はなく、筒状体２１の数が２つ以上（好ましくは３つ以上）であれば中間プレート４の中心を取り巻くように筒状体２１を配置することは可能である。また、本実施形態では、各筒状体２１の断面形状が角が丸められた正方形状であるが、各筒状体２１の断面形状は四角形以外の多角形状や円形状、あるいは特定方向に引き延ばされた形状（例えば、長方形状や楕円状）であってもよい。   In the present embodiment, the four cylindrical bodies 21 are arranged in a matrix so as to surround the center of the intermediate plate 4. However, the number of the cylindrical bodies 21 is not necessarily four. If the number of the cylindrical bodies 21 is two or more (preferably three or more), the cylindrical bodies surround the center of the intermediate plate 4. It is possible to arrange 21. In this embodiment, the cross-sectional shape of each cylindrical body 21 is a square shape with rounded corners. However, the cross-sectional shape of each cylindrical body 21 is a polygonal shape other than a quadrangle, a circular shape, or a specific direction. An extended shape (for example, a rectangular shape or an elliptical shape) may be used.

第１プレート５および中間プレート４の形状は、特に限定されるものではないが、例えば、車両長手方向から見たときに（以下、単に「正面視で」という。）、全ての筒状体２１に外接する矩形よりも僅かに大きな矩形状である。   The shapes of the first plate 5 and the intermediate plate 4 are not particularly limited. For example, when viewed from the longitudinal direction of the vehicle (hereinafter simply referred to as “in front view”), all the cylindrical bodies 21 are formed. It is a rectangular shape slightly larger than the rectangle circumscribing the.

一方、第２エネルギー吸収体３は、中間プレート４上に垂直に立てられた複数の隔壁３１と、中間プレート４から前方に向かって立ち上がる周壁３５を含む。隔壁３１および周壁３５の頂き部（前端部）は例えば溶接により第２プレート６に固定されており、隔壁３１および周壁３５の基部（後端部）は例えば溶接により中間プレート４に固定されている。隔壁３１および周壁３５のプレート（６または４）への固定方法としては、溶接以外にも、例えば接着やボルト止めなどを利用できる。   On the other hand, the second energy absorber 3 includes a plurality of partition walls 31 standing vertically on the intermediate plate 4 and a peripheral wall 35 rising from the intermediate plate 4 toward the front. The rib 31 and the receiving portion (front end portion) of the peripheral wall 35 are fixed to the second plate 6 by welding, for example, and the base portion (rear end portion) of the partition wall 31 and the peripheral wall 35 is fixed to the intermediate plate 4 by welding, for example. . As a method for fixing the partition wall 31 and the peripheral wall 35 to the plate (6 or 4), for example, adhesion or bolting can be used in addition to welding.

本実施形態では、上下に延びる隔壁３１と左右に延びる隔壁３１の２つの隔壁３１が、正面視で筒状体２１の間を通るように配置されている。換言すれば、隔壁３１は車両長手方向において筒状体２１と重ならないように配置されており、隔壁３１同士が互いに垂直に交差している。これらの隔壁３１によって、中間プレート４に面する４つの空間が仕切られている。上下に延びる隔壁３１と左右に延びる隔壁３１は同じ形状であり、その形状は前方に向かって尖る略台形状である。   In the present embodiment, two partition walls 31, that is, a partition wall 31 that extends vertically and a partition wall 31 that extends to the left and right, are arranged so as to pass between the cylindrical bodies 21 in a front view. In other words, the partition walls 31 are arranged so as not to overlap the cylindrical body 21 in the longitudinal direction of the vehicle, and the partition walls 31 intersect each other vertically. By these partition walls 31, four spaces facing the intermediate plate 4 are partitioned. The vertically extending partition wall 31 and the horizontally extending partition wall 31 have the same shape, and the shape thereof is a substantially trapezoidal shape that points forward.

周壁３５は、隔壁３１で仕切られた４つの空間を囲繞するように、各隔壁３１の両辺に沿って中間プレート４から立ち上がっている。すなわち、周壁３５は、中間プレート４から遠ざかる方向に（すなわち、前向きに）先細りとなるコーン状である。   The peripheral wall 35 rises from the intermediate plate 4 along both sides of each partition wall 31 so as to surround the four spaces partitioned by the partition walls 31. That is, the peripheral wall 35 has a cone shape that tapers in a direction away from the intermediate plate 4 (that is, forward).

周壁３５の断面形状は、本実施形態では矩形状である。ただし、周壁３５の断面形状は、四角形以外の多角形状であってもよいし、円形状であってもよい。   The cross-sectional shape of the peripheral wall 35 is rectangular in this embodiment. However, the cross-sectional shape of the peripheral wall 35 may be a polygonal shape other than a square or a circular shape.

本実施形態では、周壁３５の頂き部および基部以外では隔壁３１の幅が周壁３５の幅よりも大きく設定されており、周壁３５が全長に亘って隔壁３１によって４つのピースに分割されている。ただし、周壁３５が全長に亘って周方向に連続していて、周壁３５内に各隔壁３１の全体が収容されていてもよい。   In the present embodiment, the width of the partition wall 31 is set to be larger than the width of the peripheral wall 35 except for the base portion and the base portion of the peripheral wall 35, and the peripheral wall 35 is divided into four pieces by the partition wall 31 over the entire length. However, the peripheral wall 35 may continue in the circumferential direction over the entire length, and the entire partition wall 31 may be accommodated in the peripheral wall 35.

各隔壁３１における第２プレート６に接触する頂き部には、隔壁３１の頂き部の強度を低下させるための切欠き３２が設けられている。本実施形態では、切欠き３２が各隔壁３１の頂き部の中央に形成されており、図２（ａ）に示すように双方の隔壁３１の切欠きの底部同士が十字状に交わっている。   A notch 32 for reducing the strength of the receiving portion of the partition wall 31 is provided at the receiving portion of each partition wall 31 that contacts the second plate 6. In the present embodiment, a notch 32 is formed in the center of the top of each partition wall 31, and the bottoms of the notches of both partition walls 31 intersect in a cross shape as shown in FIG.

本実施形態では、周壁３５の先端の大きさは、筒状体２１で囲まれる多角形（本実施形態では四角形）領域Ｒの面積（図２（ｃ）中に間隔の広いハッチングで示す面積）よりも小さく設定されている。このため、周壁３５の先端は、車両長手方向に投影したときに、多角形領域Ｒ内に収まる。   In the present embodiment, the size of the tip of the peripheral wall 35 is the area of a polygonal (rectangular in the present embodiment) region R surrounded by the cylindrical body 21 (the area indicated by hatching with a wide interval in FIG. 2C). Is set smaller than. For this reason, the tip of the peripheral wall 35 fits in the polygonal region R when projected in the vehicle longitudinal direction.

第２プレート６の形状は、特に限定されるものではないが、例えば、周壁３５の先端よりも僅かに大きな矩形状である。ただし、第２プレート６が鉄道車両の主構造物に取り付けられる場合は、第２プレート６が周壁３５の先端よりも十分に大きくてもよい。   Although the shape of the 2nd plate 6 is not specifically limited, For example, it is a rectangular shape slightly larger than the front-end | tip of the surrounding wall 35. As shown in FIG. However, when the second plate 6 is attached to the main structure of the railway vehicle, the second plate 6 may be sufficiently larger than the tip of the peripheral wall 35.

図３（ａ）は、本実施形態の衝突エネルギー吸収装置１Ａの衝突変形後の状態を示す斜視図であり、図３（ｂ）は（ａ）のIIIＢ−IIIＢ線に沿った断面図である。なお、図３（ｂ）では、各部材を一本の線で描いている。   FIG. 3A is a perspective view showing a state after the collision deformation of the collision energy absorbing device 1A of the present embodiment, and FIG. 3B is a cross-sectional view taken along line IIIB-IIIB in FIG. . In addition, in FIG.3 (b), each member is drawn with one line.

図３（ａ）および（ｂ）に示すように、本実施形態の衝突エネルギー吸収装置１Ａでは、衝突時には第２エネルギー吸収体３の隔壁３１が第１エネルギー吸収体２の筒状体２１間に形成される隙間に入り込むため、装置全体としての有効ストロークを大きくすることができる。その結果、装置全長に対する有効ストロークの割合である有効圧縮率を高くすることができる。   As shown in FIGS. 3A and 3B, in the collision energy absorbing device 1A of the present embodiment, the partition wall 31 of the second energy absorber 3 is interposed between the cylindrical bodies 21 of the first energy absorber 2 at the time of collision. Since the gap is formed, the effective stroke of the entire apparatus can be increased. As a result, the effective compression ratio, which is the ratio of the effective stroke to the entire device length, can be increased.

図４は、衝突エネルギー吸収装置１Ａの荷重と圧縮率の関係を示すグラフである。なお、図４には、第１エネルギー吸収体２のみを用いたときの荷重と圧縮率の関係を破線で示す。図４に示すように、本実施形態の衝突エネルギー吸収装置１Ａでは、第１エネルギー吸収体２のみを用いた場合に比べて有効圧縮率（図４中の実線および破線の最も右側の落ち込み部分）が１０〜１５％程度高くなる。   FIG. 4 is a graph showing the relationship between the load and the compressibility of the collision energy absorbing device 1A. In FIG. 4, the relationship between the load and the compressibility when only the first energy absorber 2 is used is indicated by a broken line. As shown in FIG. 4, in the collision energy absorbing device 1A of the present embodiment, the effective compression ratio (the rightmost sagging portion of the solid line and the broken line in FIG. 4) is compared with the case where only the first energy absorber 2 is used. Increases by about 10 to 15%.

また、本実施形態では、第２エネルギー吸収体３の周壁３５がコーン状であるので、衝突時には図３（ａ）および（ｂ）に示すように周壁３５が放射状に（同心円状に）波打つように、換言すれば中心側の折れ重なり部が外周側の折れ重なり部内に収まるように変形する。このため、周壁３５を非常に薄い板状に圧壊させることができ、中間プレート４を挟んで各筒状体２１の前方に維持される厚さを小さく抑えることができる。しかも、第２エネルギー吸収体３から第１エネルギー吸収体２に伝えられる荷重は中間プレート４の中央に集中するため、各筒状体２１に偏心荷重をかけることができる。これにより、各筒状体２１の座屈開始荷重を低減させることができる。その結果、第１エネルギー吸収体２の変形初期のピーク荷重（図４中の実線の中央の盛り上がり部分）を、第１エネルギー吸収体２のみを用いたときの変形初期のピーク荷重（図４中の破線の左端の盛り上がり部分）のおよそ４０％と小さくすることができる。   In the present embodiment, since the peripheral wall 35 of the second energy absorber 3 has a cone shape, the peripheral wall 35 undulates radially (concentrically) as shown in FIGS. 3A and 3B in the event of a collision. In other words, it is deformed so that the center-side folded portion fits within the outer circumferential side folded portion. For this reason, the peripheral wall 35 can be crushed into a very thin plate shape, and the thickness maintained in front of each cylindrical body 21 across the intermediate plate 4 can be kept small. In addition, since the load transmitted from the second energy absorber 3 to the first energy absorber 2 is concentrated at the center of the intermediate plate 4, an eccentric load can be applied to each cylindrical body 21. Thereby, the buckling start load of each cylindrical body 21 can be reduced. As a result, the peak load at the initial stage of deformation of the first energy absorber 2 (the raised portion at the center of the solid line in FIG. 4) is the peak load at the initial stage of deformation when only the first energy absorber 2 is used (in FIG. 4). Of the left end of the broken line) can be reduced to approximately 40%.

さらに、周壁３５の先端の大きさは筒状体２１で囲まれる多角形領域Ｒの面積よりも小さいので、周壁３５の先端が第１エネルギー吸収体２の筒状体２１間に形成される隙間に向かって押し込まれるように周壁３５が変形する。このため、装置全体としての有効ストロークをより大きくすることができる。しかも、車両長手方向において周壁３５の先端が筒状体２１と重ならないため、各筒状体２１により大きな偏心荷重をかけることができる。   Furthermore, since the size of the tip of the peripheral wall 35 is smaller than the area of the polygonal region R surrounded by the cylindrical body 21, a gap formed between the cylindrical bodies 21 of the first energy absorber 2 at the tip of the peripheral wall 35. The peripheral wall 35 is deformed so as to be pushed toward the front. For this reason, the effective stroke as the whole apparatus can be made larger. And since the front-end | tip of the surrounding wall 35 does not overlap with the cylindrical body 21 in a vehicle longitudinal direction, a big eccentric load can be applied to each cylindrical body 21. FIG.

また、各隔壁３１の頂き部には切欠き３２が設けられているので、第２エネルギー吸収体３の変形初期のピーク荷重を小さくすることができる。   Moreover, since the notch 32 is provided in the receiving part of each partition 31, the peak load of the deformation | transformation initial stage of the 2nd energy absorber 3 can be made small.

（その他の実施形態）
隔壁３１が複数設けられている場合は、周壁３５は必ずしも必要ではない。例えば、図５（ａ）および（ｂ）に示す変形例の鉄道車両用衝突エネルギー吸収装置１Ｂのように、６つの筒状体２１が縦３列、横２行で配置されている場合は、第２エネルギー吸収体３は、正面視で筒状体２１の間を通るように配置された３つの隔壁３１のみを有していてもよい。ただし、前記実施形態のように周壁３５が設けられていれば、周壁３５の変形によっても衝突エネルギーを吸収することができる。 (Other embodiments)
When a plurality of partition walls 31 are provided, the peripheral wall 35 is not always necessary. For example, when the six cylindrical bodies 21 are arranged in three columns and two rows, as in the railcar collision energy absorbing device 1B of the modification shown in FIGS. 5A and 5B, The 2nd energy absorber 3 may have only the three partition walls 31 arrange | positioned so that it may pass between the cylindrical bodies 21 by front view. However, if the peripheral wall 35 is provided as in the above-described embodiment, the collision energy can be absorbed even by deformation of the peripheral wall 35.

また、周壁３５が設けられている場合は、隔壁３１は、必ずしも複数設けられている必要はなく、少なくとも１つ設けられていればよい。例えば、図６（ａ）および（ｂ）に示す変形例の鉄道車両用衝突エネルギー吸収装置１Ｃのように、断面が横長長方形状の２つの筒状体２１が上下に並んで配置されている場合は、第２エネルギー吸収体３は、隔壁３１を１つだけ有していてもよい。また、図６（ａ）および（ｂ）に示すように、周壁３５は車両長手方向にストレートに延びていてもよい。   In the case where the peripheral wall 35 is provided, it is not always necessary to provide a plurality of partition walls 31, and it is sufficient that at least one partition wall 31 is provided. For example, when two cylindrical bodies 21 having a horizontally long rectangular cross section are arranged side by side as in the railcar collision energy absorbing device 1C of the modification shown in FIGS. 6 (a) and 6 (b). The second energy absorber 3 may have only one partition wall 31. Further, as shown in FIGS. 6A and 6B, the peripheral wall 35 may extend straight in the longitudinal direction of the vehicle.

また、第２プレート６が鉄道車両の主構造物に取り付けられる場合は、周壁３５は、前記実施形態とは逆に、中間プレート４から遠ざかる方向に拡大するコーン状であってもよい。   Moreover, when the 2nd plate 6 is attached to the main structure of a rail vehicle, the cone shape which expands in the direction away from the intermediate | middle plate 4 may be sufficient as the surrounding wall 35 contrary to the said embodiment.

本発明の鉄道車両用衝突エネルギー吸収装置は、種々の車両に有用である。   The collision energy absorbing device for railway vehicles of the present invention is useful for various vehicles.

１Ａ〜１Ｃ 鉄道車両用衝突エネルギー吸収装置
２ 第１エネルギー吸収体
２１ 筒状体
３ 第２エネルギー吸収体
３１ 隔壁
３２ 切欠き
３５ 周壁
４ 中間プレート
５ 第１プレート
６ 第２プレート DESCRIPTION OF SYMBOLS 1A-1C Collision energy absorption apparatus for rail vehicles 2 1st energy absorber 21 Cylindrical body 3 2nd energy absorber 31 Partition 32 Notch 35 Perimeter wall 4 Intermediate | middle plate 5 1st plate 6 2nd plate

Claims (8)

中間プレートを挟んで車両長手方向に並べられた、衝突時に圧壊される第１エネルギー吸収体および第２エネルギー吸収体を備え、
前記第１エネルギー吸収体は、互いに離間するように配置された複数の筒状体を含み、
前記第２エネルギー吸収体は、前記中間プレート上に、車両長手方向において前記複数の筒状体と重ならないように立てられた少なくとも１つの隔壁を含む、
鉄道車両用衝突エネルギー吸収装置。 A first energy absorber and a second energy absorber that are arranged in the longitudinal direction of the vehicle with the intermediate plate interposed therebetween and are crushed at the time of a collision;
The first energy absorber includes a plurality of cylindrical bodies arranged to be separated from each other,
The second energy absorber includes at least one partition wall standing on the intermediate plate so as not to overlap the plurality of cylindrical bodies in the vehicle longitudinal direction.
A collision energy absorber for railway vehicles. 前記第２エネルギー吸収体は、前記隔壁で仕切られた空間を囲繞するように前記中間プレートから立ち上がる周壁を含む、請求項１に記載の鉄道車両用衝突エネルギー吸収装置。   The collision energy absorbing device for a railway vehicle according to claim 1, wherein the second energy absorber includes a peripheral wall that rises from the intermediate plate so as to surround the space partitioned by the partition wall. 前記周壁は、前記中間プレートから遠ざかる方向に先細りとなるコーン状である、請求項２に記載の鉄道車両用衝突エネルギー吸収装置。   The collision energy absorbing device for a railway vehicle according to claim 2, wherein the peripheral wall has a cone shape that tapers in a direction away from the intermediate plate. 前記複数の筒状体は、前記中間プレートの中心を取り巻くように２つ以上配置されており、
前記周壁の先端の大きさは、前記複数の筒状体で囲まれる多角形領域の面積よりも小さい、請求項３に記載の鉄道車両用衝突エネルギー吸収装置。 Two or more of the plurality of cylindrical bodies are arranged so as to surround the center of the intermediate plate,
The collision energy absorbing device for a railway vehicle according to claim 3, wherein a size of a tip of the peripheral wall is smaller than an area of a polygonal region surrounded by the plurality of cylindrical bodies. 前記第２エネルギー吸収体は、前記隔壁を複数含む、請求項１〜４のいずれか一項に記載の鉄道車両用衝突エネルギー吸収装置。   The collision energy absorbing device for a railway vehicle according to any one of claims 1 to 4, wherein the second energy absorber includes a plurality of the partition walls. 前記中間プレートと共に前記第１エネルギー吸収体を挟持する第１プレートと、
前記中間プレートと共に前記第２エネルギー吸収体を挟持する第２プレートと、をさらに備え、
前記第１プレートが鉄道車両の主構造物に取り付けられる、請求項１〜５のいずれか一項に記載の鉄道車両用衝突エネルギー吸収装置。 A first plate sandwiching the first energy absorber together with the intermediate plate;
A second plate for sandwiching the second energy absorber together with the intermediate plate,
The collision energy absorbing device for a railway vehicle according to any one of claims 1 to 5, wherein the first plate is attached to a main structure of the railway vehicle. 前記中間プレートと共に前記第１エネルギー吸収体を挟持する第１プレートと、
前記中間プレートと共に前記第２エネルギー吸収体を挟持する第２プレートと、をさらに備え、
前記第２プレートが鉄道車両の主構造物に取り付けられる、請求項１〜５のいずれか一項に記載の鉄道車両用衝突エネルギー吸収装置。 A first plate sandwiching the first energy absorber together with the intermediate plate;
A second plate for sandwiching the second energy absorber together with the intermediate plate,
The collision energy absorbing device for a railway vehicle according to any one of claims 1 to 5, wherein the second plate is attached to a main structure of the railway vehicle. 前記隔壁における前記第２プレートに接触する頂き部には、切欠きが設けられている、請求項６または７に記載の鉄道車両用衝突エネルギー吸収装置。
The collision energy absorbing device for a railway vehicle according to claim 6 or 7, wherein a notch is provided in a portion of the partition that contacts the second plate.
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