WO2015092832A1 - 鉄道車両の衝突エネルギー吸収装置 - Google Patents
鉄道車両の衝突エネルギー吸収装置 Download PDFInfo
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- WO2015092832A1 WO2015092832A1 PCT/JP2013/007439 JP2013007439W WO2015092832A1 WO 2015092832 A1 WO2015092832 A1 WO 2015092832A1 JP 2013007439 W JP2013007439 W JP 2013007439W WO 2015092832 A1 WO2015092832 A1 WO 2015092832A1
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- absorber
- plate member
- collision energy
- front plate
- cylindrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/06—Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
Definitions
- the present invention relates to a collision energy absorbing device that absorbs collision energy by being crushed by a load from the front during a collision of a railway vehicle.
- a collision energy absorber that is attached to the front of a vehicle body of a railway vehicle and absorbs collision energy when the vehicles collide head-on or collide with an obstacle to protect crew members and passengers is known.
- Such an energy absorber is generally composed of a hollow columnar member made of metal, and is arranged so that its axial direction coincides with the longitudinal direction of the vehicle body.
- the collision energy absorber buckles stepwise in the axial direction, deforms into a bellows shape, absorbs the collision energy, and the impact transmitted to the vehicle body is alleviated.
- the impact energy absorber formed of fiber reinforced resin does not absorb energy mainly by successive buckling like metal, but absorbs energy mainly by continuous destruction of reinforcing fibers.
- the impact energy absorber formed of fiber reinforced resin undergoes unintentional buckling deformation, and the reinforcing fiber is not sufficiently destroyed. It came to the idea that it is important to prevent becoming.
- an object of the present invention is to provide a collision energy absorbing device that realizes stable and highly efficient energy absorption by sufficiently destroying reinforcing fibers at the time of collision.
- a railcar collision energy absorbing device is formed of a fiber reinforced resin and arranged to extend in the rail direction, and a base member that supports a rear end portion of the absorber in the rail direction, A front plate member disposed so as to face the front end portion of the absorber from the front in a state where it is not fixed to the front end portion of the absorber, and the front plate member from the front to the front end portion of the absorber. And a holding device for positioning in an opposed state.
- the front plate member is disposed to face the front end portion of the absorbent body from the front in a state where the front plate member is not fixed to the front end portion of the absorbent body formed of fiber reinforced resin.
- the reinforcing fiber of the absorber is prevented from being firmly restrained by the front plate member.
- the front plate member is positioned by the holding device so as to face the front end of the absorber from the front, the front plate member is positioned forward of the absorber in preparation for a collision even if the front plate member is not fixed to the absorber.
- the front plate member can be made to stand by in a state of being opposed to each other.
- the reinforcing fiber is sufficiently broken at the time of collision, and stable and highly efficient energy absorption can be realized.
- FIG. 2 is a sectional view taken along line II-II in FIG. It is a perspective view of the collision energy absorption apparatus shown in FIG.
- FIG. 4 is a side view of the collision energy absorbing device shown in FIG. 3. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG. It is a perspective view for demonstrating the assembly of the collision energy absorption apparatus shown in FIG.
- FIG. 1 is a cross-sectional view showing a leading portion of a railway vehicle 1 equipped with a collision energy absorbing device 10 according to an embodiment.
- 2 is a cross-sectional view taken along the line II-II in FIG.
- the collision energy absorbing device 10 is fixed to the front part of the structure 2 of the leading vehicle so as to protrude forward.
- the collision energy absorbing device 10 is crushed by the load from the front and the collision energy is absorbed. .
- Structure 2 has a frame 3.
- the underframe 3 has a pair of left and right side beams 3a extending in the front-rear direction and an end beam 3b extending left and right connecting the front ends of the left and right side beams 3a.
- the lower ends of the corner columns 4 extending in the vertical direction are joined to the left and right ends of the end beam 3b, and the lower ends of the pair of collision columns 5 are joined to the middle portion of the end beam 3b in the left and right directions.
- a driver's seat 6 is disposed in the room after the collision column 5.
- a front outer plate 7 that constitutes the forefront surface of the structure 2 with a gap in the front-rear direction is arranged with the collision column 5.
- a coupler 8 protruding forward from the front outer plate 7 is fixed to the end beam 3b.
- the collision energy absorbing device 10 is fixed to the collision column 5 on the front side of the end beam 3b. That is, the collision energy absorbing device 10 protrudes forward from the underframe 3.
- the collision energy absorbing device 10 is not in contact with the front outer plate 7, and a gap is formed between the collision energy absorbing device 10 and the front outer plate 7. That is, in the present embodiment, the coupler 8 is in a state of protruding forward from the collision energy absorbing device 10.
- FIG. 3 is a perspective view of the collision energy absorbing device 10 shown in FIG.
- FIG. 4 is a side view of the collision energy absorbing device 10 shown in FIG.
- the collision energy absorbing device 10 includes a plurality of cylindrical absorbers 15 arranged in parallel so as to extend in the rail direction (front-rear direction), which is the traveling direction of the railway vehicle, and the cylindrical absorber.
- the base member 11 that supports the rear end portion 15a in the rail direction of the 15 rails, the front plate member 20 disposed so as to face the front end portion 15b of the cylindrical absorbent body 15 from the front, and the front plate member 20 are cylindrically absorbed.
- the collision energy absorbing device 10 is a unit in which many of the members are configured by a common module, and is horizontally long as viewed from the front.
- the base member 11 has a plate-like base plate portion 12 and a plurality of fitting support portions 14 protruding forward from the base plate portion 12.
- the base plate portion 12 is disposed so as to be orthogonal to the axial direction of the cylindrical absorbent body 15.
- the axial direction of the cylindrical absorbent body 15 may be slightly inclined even if it does not completely coincide with the front-rear direction.
- a plurality of fixing holes 12 a for fixing the collision energy absorbing device 10 to the collision column 5 are formed in the base plate portion 12.
- the base plate portion 12 is provided with a locking portion 13 for locking a rear end portion of a regulating member 29 (for example, a wire) described later.
- the locking part 13 of this embodiment is hook-shaped.
- the fitting support portion 14 is fitted to the rear end portion 15a of the cylindrical absorbent body 15 from the rear to support the rear end portion 15a.
- the fitting support portion 14 has an outer peripheral shape similar to the inner peripheral shape of the cylindrical absorbent body 15, and is inserted inside the rear end portion 15 a of the tubular absorbent body 15.
- the outer shape of the fitting support portion 14 is sized such that the entire circumference is in sliding contact with the inner circumferential surface of the cylindrical absorbent body 15.
- the fitting support portion 14 has a cylindrical shape (for example, a cylindrical shape) and is fixed to the front surface of the base plate portion 12.
- the base plate portion 12, the locking portion 13, and the fitting support portion 14 are made of metal and are fixed to each other by welding. Between the fitting support part 14 and the rear end part 15a of the cylindrical absorber 15, a rotation preventing mechanism for preventing the cylindrical absorber 15 from rotating relative to the fitting support part 14 in the circumferential direction. 16 is provided. Specifically, the rotation prevention mechanism 16 is realized by inserting an insertion tool 16 (for example, a pin or a screw) into the holes 14a and 15e formed in the fitting support portion 14 and the cylindrical absorber 15. ing.
- an insertion tool 16 for example, a pin or a screw
- the plurality of cylindrical absorbers 15 are the same in material, shape and size.
- the cylindrical absorbent body 15 is formed of a fiber reinforced resin (for example, CFRP).
- the fiber of the fiber reinforced resin has a 0 ° direction material extending in the crushing direction (front-rear direction) and a 90 ° direction material extending in a direction orthogonal to the crushing direction, and the 0 ° direction material mainly absorbs collision energy.
- the 90 ° direction material plays the role of bundling the 0 ° direction material. Therefore, in the cylindrical absorbent body 15, the 0 ° direction material is more than the 90 ° direction material, and is laminated at a ratio of 5: 1, for example.
- the cylindrical absorber 15 has an annular cross section.
- the end surface of the rear end portion 15 a of the cylindrical absorbent body 15 is orthogonal to the axial direction (rail direction) of the tubular absorbent body 15.
- the end surface of the rear end portion 15a of the cylindrical absorbent body 15 is entirely on the same virtual vertical plane, and the position of the entire front-rear direction is the same.
- the end surface 15c of the front end portion 15b of the cylindrical absorbent body 15 has portions with different front-rear direction positions.
- the end surface 15 c of the front end portion 15 b of the cylindrical absorbent body 15 is inclined at a predetermined inclination angle ⁇ with respect to a direction orthogonal to the axial direction of the cylindrical absorbent body 15. That is, the end face 15c is tapered with respect to the virtual vertical plane.
- the inclination angle ⁇ is preferably smaller, and preferably 0 ° ⁇ ⁇ 30 ° (for example, 15 °).
- the plurality of cylindrical absorbers 15 are arranged so that at least one cylindrical absorber 15A is surrounded by another cylindrical absorber 15B when viewed from the front.
- the cylindrical absorbent bodies 15 are arranged in at least three stages of an upper stage, a middle stage, and a lower stage, and a plurality of cylindrical absorbent bodies 15 are arranged in the lateral direction (left-right direction) in each stage. .
- These cylindrical absorbers 15 are arranged in parallel to each other.
- the posture in the rotational direction around the axis of one cylindrical absorbent body 15 may be different from that of at least one other cylindrical absorbent body 15.
- the upper cylindrical absorber 15 is arranged in such a posture that its front end 15d (tip) is positioned on the lower side.
- the lower cylindrical absorber 15 is arranged in such a posture that its front end 15d is located on the upper side.
- the middle-stage cylindrical absorbent bodies 15 those arranged at both ends in the horizontal direction are arranged in such a posture that their front ends 15 d are positioned inward in the horizontal direction.
- the cylindrical absorbent body 15A in which the upper, lower, left, and right sides of the middle tubular absorbent body 15 are surrounded by the other tubular absorbent body 15B does not have to determine the posture in the rotational direction around the axis, but in this embodiment
- the front end 15d is arranged in a posture positioned on the lower side.
- the front plate member 20 is opposed to the front end portions 15b of the plurality of cylindrical absorbers 15 from the front, and is disposed so as to be orthogonal to the axial direction of the cylindrical absorber 15.
- the front plate member 20 is not fixed to the front end portion 15b of at least one cylindrical absorber 15 among the plurality of cylindrical absorbers 15, but directly to the front end portion 15b of the other cylindrical absorber 15 or the guide member 25. It is fixed (for example, adhesion) via.
- the number of the at least one cylindrical absorber that is not fixed to the front plate member 20 is larger than the number of the other cylindrical absorbers that are fixed to the front plate member 20.
- the front plate member 20 may be unfixed with respect to the front end portions 15 b of all the cylindrical absorbent bodies 15.
- the front plate member 20 is integrally provided with a plurality of guide members 25 as a holding device 30.
- the guide member 25 positions the front plate member 20 in the direction orthogonal to the rail direction with respect to the cylindrical absorber 15. Specifically, the guide member 25 protrudes rearward from the front plate member 20 and is fitted to the front end portion 15b of the cylindrical absorbent body 15 so as to be slidable from the front.
- the guide member 25 has an outer peripheral shape similar to the inner peripheral shape of the tubular absorbent body 15 and is inserted inside the front end portion 15 b of the tubular absorbent body 15.
- the outer shape of the guide member 25 is such that the entire circumference is in sliding contact with the inner circumferential surface of the cylindrical absorbent body 15.
- the guide member 25 has a cylindrical shape (for example, a cylindrical shape) and is fixed to the front plate member 20.
- the bending rigidity of the front plate member 20 is arbitrary, but is preferably higher than the bending rigidity of the base plate portion 12.
- the front plate member 20 has a plurality of divided plates 21 to 23 divided into upper and lower parts, and a cover plate 24 stacked over the divided plates 21 to 23.
- the division plates 21 to 23 are each horizontally long when viewed from the front, and ribs 21b, 21c, 22b, 22c, 23b, and 23c projecting in the rail direction are provided on the upper and lower ends of the division plates 21 to 23 (see FIG. 7) is formed.
- the divided plates 21 to 23, the cover plate 24, and the guide member 25 are made of metal and are fixed to each other by welding.
- the front plate member 20 is positioned in a direction perpendicular to the rail direction with respect to the tubular absorber 15 by fitting the guide member 25 to the front end portion 15b of the tubular absorber 15 from the front.
- the number of guide members 25 is smaller than the number of cylindrical absorbent bodies 15.
- the guide member 25 is not provided corresponding to the cylindrical absorbent body 15A in which the upper, lower, left, and right sides of the middle tubular absorbent body 15 are surrounded by another cylindrical absorbent body 15B. That is, the front end portion 15b of the cylindrical absorbent body 15A to which the guide member 25 is not fitted is not positioned in the direction orthogonal to the rail direction.
- the peripheral walls of the cylindrical absorber 15 and the guide member 25 are parallel to the front-rear direction (axial direction).
- the guide member 25 is greatly separated from the base member 11 in the front-rear direction.
- the distance L in the front-rear direction between the guide member 25 and the base member 11 means the maximum stroke in the crushing of the cylindrical absorbent body 15 in the front-rear direction.
- the distance L is larger than the total length of the guide member 25 in the front-rear direction, and is 50% to 90% of the total length of the cylindrical absorbent body 15.
- the rear end surface (front end surface) of the guide member 25 faces the internal space of the cylindrical absorbent body 15.
- the cylindrical absorber 15 is not compressed in the front-rear direction.
- the outer peripheral surface of the guide member 25 is located radially inward from the inner peripheral surface of the cylindrical absorbent body 15. Therefore, the guide member 25 does not hinder the intended crushing operation of the cylindrical absorbent body 15.
- a restricting member 29 for connecting the front plate member 20 and the base member 11 to each other is provided as a holding device 30.
- the regulating member 29 partially separates the outer portion of the front plate member 20 and the outer portion of the base member 11 so that the outer side in the direction orthogonal to the rail direction of the aggregate of the plurality of cylindrical absorbent bodies 15 is opened. Connected to. That is, the restricting member 29 does not surround the aggregate of the plurality of cylindrical absorbent bodies 15 from the outside.
- the front plate member 20 is provided with a locking portion 26 (see FIG. 7) at a position corresponding to the locking portion 13 provided on the base member 11.
- the locking part 26 of this embodiment is hook-shaped.
- the rear end portion of the restricting member 29 is engaged with the engaging portion 13 of the base member 11, and the front end portion of the restricting member 29 is engaged with the engaging portion 26 of the front plate member 20. , 26, a regulating member 29 is bridged. Thereby, the restricting member 29 prevents the front plate member 20 from being separated from the cylindrical absorber 15 forward by a predetermined distance or more.
- the regulating member 29 is formed with a lower strength than the cylindrical absorbent body 15. That is, the restricting member 29 is less likely to become a resistance when the front plate member 20 moves in a direction approaching the base member 11 than the cylindrical absorbent body 15.
- the resistance of the regulating member 29 given to the movement is small.
- the restriction member 29 of the present embodiment is a wire, and no resistance is generated by the restriction member 29 when the front plate member 20 moves in a direction approaching the base member 11.
- FIGS. 5 to 8 are perspective views for explaining the assembly of the collision energy absorbing device 10 shown in FIG.
- the rear end portion 15 a of the cylindrical absorbent body 15 is fitted to the fitting support portion 14 of the base member 11 from the front.
- the hole 15e of the cylindrical absorber 15 is matched with the hole 14a of the fitting support part 14, and the insertion tool 16 (refer FIG. 4) is inserted in these holes 14a and 15e.
- the attitude of the cylindrical absorber 15 in the rotational direction around the axis is as described above.
- the front-rear direction positions of the front ends 15d of all the cylindrical absorbers 15 are the same.
- the front plate member 20 has a plurality of divided plates 21-23.
- Each of the divided plates 21 to 23 includes main body plate portions 21a, 22a, 23a orthogonal to the front-rear direction, ribs 21b, 22b, 23b protruding rearward from the upper ends of the main body plate portions 21a, 22a, 23a, and a main body. It has ribs 21c, 22c, and 23c that protrude rearward from the lower ends of the plate portions 21a, 22a, and 23a.
- Circular holes 21d, 22d, and 23d into which the guide member 25 is fitted are formed at required portions of the main body plate portions 21a, 22a, and 23a.
- a plurality of notches 21e and 23e are formed in the rib 21c on the lower side of the upper divided plate 21 and the rib 23b on the upper side of the lower divided plate 23 at intervals in the horizontal direction.
- the ribs 22b and 22c of the middle divided plate 22 are exposed at the notches 21e and 23e, and the divided plates 21 to 23 are welded to each other along the periphery of the notches 21e and 23e.
- Screw holes 21f, 23f, and 24a are formed at required portions of the divided plates 21 and 23 and the cover plate 24, and a locking portion 26 that is a threaded hook is screwed thereto.
- the cover plate 24 is welded to the divided plates 21 to 23 so as to overlap the three divided plates 21 to 23.
- the guide member 25 is welded to the divided plates 21 to 23 while being fitted in the holes 21d, 22d, and 23d of the divided plates 21 to 23.
- the front plate member 20 manufactured as described above is brought close to the cylindrical absorber 15 supported by the base member 11 from the front, and the guide member 25 is the front end portion of the cylindrical absorber 15. 15b.
- the regulating member 29 which consists of a wire is spanned between the latching
- FIG. Thereby, the assembly of the collision energy absorbing device 10 is completed.
- the collision energy absorbing operation by the collision energy absorbing device 10 will be described.
- the railway vehicle 1 on which the collision energy absorbing device 10 is mounted collides with another vehicle traveling on the same track in a frontal collision or collides with an obstacle, it is directed rearward with respect to the front plate member 20.
- a big impact acts. Due to the impact, the front plate member 20 is displaced rearward, but since the plurality of guide members 25 are fitted to the plurality of cylindrical absorbers 15, the posture of the front plate member 20 during displacement is stabilized. Since the front plate member 20 is not fixed to the front end portion 15b of the cylindrical absorbent body 15, the reinforcing fibers of the cylindrical absorbent body 15 are not firmly restrained by the front plate member 20.
- the absorber absorbs energy by repeating buckling stepwise, so that the load transmitted by the absorber greatly varies from one buckling to the next. To do. If it does so, in order to design the intensity
- the cylindrical absorbent body 15 is made of fiber reinforced resin, and the reinforcing fibers are continuously broken when the cylindrical absorbent body 15 is crushed. The fluctuation of the load to be suppressed is suppressed, and a crushing characteristic with a small load fluctuation is obtained.
- the peak load is reduced while increasing the average load during the collapse of the cylindrical absorber 15 and sufficiently absorbing the collision energy.
- the end surface 15c of the front end portion 15b of the cylindrical absorbent body 15 is tapered, the contact area between the front plate member 20 and the tubular absorbent body 15 gradually increases when the cylindrical absorbent body 15 starts to be collapsed. The initial peak load is also reduced.
- the front plate member 20 is opposed to the front end 15d of the cylindrical absorbent body 15 from the front in a state where the front plate member 20 is not fixed to the tubular absorbent body 15 formed of fiber reinforced resin. Therefore, it is possible to prevent the reinforcing fibers of the cylindrical absorbent body 15 from being firmly restrained by the front plate member 20 at the front end portion 15b of the tubular absorbent body 15. Therefore, unintended buckling deformation is suppressed from occurring in the cylindrical absorbent body 15 due to the displacement of the front plate member 20 at the time of collision, and the reinforcing fibers of the cylindrical absorbent body 15 can be sufficiently destroyed.
- the reinforcing fiber is sufficiently broken at the time of collision, and stable and highly efficient energy absorption can be realized.
- the front plate member 20 is positioned by the holding device 30 so as to face the front end 15d of the cylindrical absorbent body 15 from the front, the front plate member 20 is not fixed to the tubular absorbent body 15. In preparation for a collision, the front plate member 20 can be put on standby in a state of facing the cylindrical absorber 15 from the front.
- the front plate member 20 is arranged with respect to the cylindrical absorber 15.
- the front plate member 20 can be easily put on standby in a state of facing the cylindrical absorbent body 15 from the front without being fixed.
- the guide member 25 is provided integrally with the front plate member 20 and is fitted to the front end portion 15b of the cylindrical absorbent body 15 from the front, the front plate member 20 and the cylindrical absorbent body 15 are not collapsed during crushing. The posture is stabilized, and the guide member 25 plays a role of defining the crushing mode by guiding the broken fibers of the crushing cylindrical absorbent body 15 so as to spread radially outward.
- the plurality of guide members 25 are not provided corresponding to the cylindrical absorber 15A surrounded by the other cylindrical absorber 15B, the weight is reduced by reducing the number of the guide members 25. be able to.
- the regulating member 29 that prevents the front plate member 20 from being separated from the cylindrical absorbent body 15 by a predetermined amount or more is provided as the holding device 30, the front plate member 20 is attached to the cylindrical absorbent body 15. Without fixing, the front plate member 20 can easily stand by at an appropriate position with respect to the cylindrical absorbent body 15.
- the regulating member 29 is formed with a lower strength than the cylindrical absorbent body 15 and connects the front plate member 20 and the base member 11 to each other. Therefore, when the front plate member 20 moves toward the base member 11 in the event of a collision and the cylindrical absorber 15 is crushed, the restricting member 29 is less likely to become a movement resistance of the front plate member 20 and is tubular. It is possible to prevent the crushing behavior of the absorber 15 from being affected.
- the base member 11 has the fitting support portion 14 that is fitted to the rear end portion 15a of the cylindrical absorbent body 15 from behind and supports the rear end portion 15a, The end 15a can be easily supported by the base member 11.
- the collision energy absorbing device 10 is attached to the front part of the structure 2 of the leading vehicle, but may be attached to the front part of the structure of the connected vehicle. Even when it is attached to the front part of the structure 2 of the leading vehicle, the attachment position is not limited to the collision column 5, and any position may be used as long as it can withstand the impact at the time of collision, such as a frame.
- the base member 11, the front plate member 20, and the guide member 25 are formed of metal, but may be formed of fiber reinforced resin.
- the rotation preventing mechanism 16 is the insertion tool 16, but is not limited to this as long as the relative rotation of the cylindrical absorbent body 15 with respect to the fitting support portion 14 can be prevented.
- the section of the fitting support portion 14 and the cylindrical absorbent body 15 that are fitted to each other may have a non-circular shape (for example, a polygonal shape) that prevents relative rotation therebetween.
- the base member 11 may be a part of the structure 2.
- the restricting member 29 is not limited to a wire, and may be a coil spring or a rod having a lower strength than the cylindrical absorbent body 15.
- the regulating member 29 may be a plate (for example, a rubber plate) having a lower strength than the cylindrical absorbent body 15 and may surround an assembly of the plurality of tubular absorbent bodies 15.
- the guide member 25 is configured to be fitted inside the cylindrical absorbent body 15, but may be configured to be fitted outside. However, when the guide member 25 is configured to be fitted in the cylindrical absorbent body 15, the outer diameter of the guide member 25 is reduced, which can contribute to space saving and weight reduction. The effect on behavior can also be reduced.
- the front-rear direction positions of the front ends 15d of the plurality of cylindrical absorbers 15 are the same as each other, but may be different from each other.
- the fixing of the divided plates 21 to 23, the cover plate 24, and the guide member 25 is not limited to welding, and any fixing method may be used as long as it satisfies the strength such as mechanical fastening or adhesion.
- the front plate member 20 is configured to fix the plurality of divided plates 21 to 23, the cover plate 24, and the guide member 25, but may be configured integrally.
- the base plate portion 12, the locking portion 13, and the fitting support portion 14 may also be fixed to each other by mechanical fastening or adhesion, or may be integrally formed.
- the collision energy absorbing device for a railway vehicle according to the present invention has an excellent effect that the reinforcing fiber is sufficiently broken at the time of the collision and it is possible to realize stable and highly efficient energy absorption. It is beneficial to apply it widely to railway vehicles that can demonstrate the significance of this effect.
Abstract
Description
10 衝突エネルギー吸収装置
11 ベース部材
14 嵌合支持部
15 吸収体
20 前板部材
25 ガイド部材
29 規制部材
30 保持装置
Claims (8)
- 繊維強化樹脂で形成され、レール方向に延びるように配置された吸収体と、
前記吸収体のレール方向の後端部を支持するベース部材と、
前記吸収体の前端部に対して固定されない状態で、前記吸収体の前端部に前方から対向するように配置された前板部材と、
前記前板部材を前記吸収体の前記前端部に前方から対向した状態に位置決めする保持装置と、を備えている、鉄道車両の衝突エネルギー吸収装置。 - 前記保持装置は、前記吸収体に対応して設けられ、前記前板部材を前記吸収体に対してレール方向に直交する方向に位置決めするガイド部材を有している、請求項1に記載の鉄道車両の衝突エネルギー吸収装置。
- 前記ガイド部材は、前記前板部材に設けられ、前記吸収体の前端部に前方から嵌合している、請求項2に記載の鉄道車両の衝突エネルギー吸収装置。
- 前記吸収体は、複数の吸収体の1つであり、前記複数の吸収体は、それぞれレール方向に延びるように並列配置され、
前記複数の吸収体は、前方から見て、その少なくとも1つの吸収体が他の吸収体により囲まれるように配置され、
前記ガイド部材は、複数のガイド部材の1つであり、前記複数のガイド部材の数は、前記複数の吸収体の数よりも少なく、
前記複数のガイド部材は、前記他の吸収体に囲まれた前記少なくとも1つの吸収体には対応して配置されていない、請求項3に記載の鉄道車両の衝突エネルギー吸収装置。 - 前記吸収体は、複数の吸収体の1つであり、前記複数の吸収体は、それぞれレール方向に延びるように並列配置され、
前記前板部材は、前記複数の吸収体の前端部に前方から対向するように配置され、
前記前板部材は、前記複数の吸収体のうち少なくとも1つの吸収体の前端部に固定されず、前記複数の吸収体のうち他の吸収体の前端部に固定されている、請求項1乃至4のいずれか1項に記載の鉄道車両の衝突エネルギー吸収装置。 - 前記保持装置は、前記前板部材が前記吸収体から前方に所定以上に離隔するのを妨げる規制部材を有している、請求項1乃至5のいずれか1項に記載の鉄道車両の衝突エネルギー吸収装置。
- 前記規制部材は、前記前板部材と前記ベース部材とを互いに接続しており、
前記規制部材は、前記吸収体よりも低い強度に形成されている、請求項6に記載の鉄道車両の衝突エネルギー吸収装置。 - 前記ベース部材は、前記吸収体の前記後端部に後方から嵌合して前記後端部を支持する嵌合支持部を有している、請求項1乃至7のいずれか1項に記載の鉄道車両の衝突エネルギー吸収装置。
Priority Applications (4)
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PCT/JP2013/007439 WO2015092832A1 (ja) | 2013-12-18 | 2013-12-18 | 鉄道車両の衝突エネルギー吸収装置 |
CN201380081311.9A CN105992722B (zh) | 2013-12-18 | 2013-12-18 | 铁道车辆的碰撞能量吸收装置 |
JP2015553233A JP6200966B2 (ja) | 2013-12-18 | 2013-12-18 | 鉄道車両の衝突エネルギー吸収装置 |
US15/038,824 US10124816B2 (en) | 2013-12-18 | 2013-12-18 | Collision energy absorbing device of railcar |
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US20150069773A1 (en) * | 2013-09-10 | 2015-03-12 | Fuji Jukogyo Kabushiki Kaisha | Impact absorber |
US20170057440A1 (en) * | 2015-08-31 | 2017-03-02 | Toyota Jidosha Kabushiki Kaisha | Energy absorbing structure of vehicle |
CN108194560A (zh) * | 2018-01-08 | 2018-06-22 | 深圳市乾行达科技有限公司 | 导向胀管式蜂窝及其制造方法 |
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JP6200966B2 (ja) * | 2013-12-18 | 2017-09-20 | 川崎重工業株式会社 | 鉄道車両の衝突エネルギー吸収装置 |
JP6698283B2 (ja) * | 2015-06-03 | 2020-05-27 | 川崎重工業株式会社 | 鉄道車両の車体 |
DE102016125554A1 (de) * | 2016-12-23 | 2018-06-28 | Voith Patent Gmbh | Zug-/Stoßeinrichtung und Kraftübertragungseinheit mit einer derartigen Zug-/Stoßeinrichtung |
US20190264769A1 (en) * | 2018-02-27 | 2019-08-29 | GM Global Technology Operations LLC | Composite energy-absorbing assembly having discrete energy-absorbing elements supported by a carrier plate |
CN110901678B (zh) * | 2018-09-14 | 2021-07-27 | 中车唐山机车车辆有限公司 | 一种轨道车辆及其吸能装置 |
KR102034395B1 (ko) * | 2018-10-04 | 2019-11-08 | 주식회사 다원시스 | 철도차량용 연결기의 설치구조 |
CN109159795B (zh) * | 2018-10-23 | 2019-09-13 | 中南大学 | 多胞吸能装置及其应用方法、具有其的轨道交通车辆 |
US10723271B2 (en) * | 2018-11-09 | 2020-07-28 | GM Global Technology Operations LLC | Running board configured for absorbing energy and method of forming same |
FR3120335A1 (fr) * | 2021-03-02 | 2022-09-09 | Psa Automobiles Sa | Absorbeur de chocs en matière plastique pour système d’absorption de chocs hybride. |
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Also Published As
Publication number | Publication date |
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JP6200966B2 (ja) | 2017-09-20 |
US10124816B2 (en) | 2018-11-13 |
CN105992722A (zh) | 2016-10-05 |
US20160375913A1 (en) | 2016-12-29 |
JPWO2015092832A1 (ja) | 2017-03-16 |
CN105992722B (zh) | 2018-05-25 |
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