FR2759338A1 - Rail vehicle energy absorber - Google Patents

Rail vehicle energy absorber Download PDF

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Publication number
FR2759338A1
FR2759338A1 FR9701480A FR9701480A FR2759338A1 FR 2759338 A1 FR2759338 A1 FR 2759338A1 FR 9701480 A FR9701480 A FR 9701480A FR 9701480 A FR9701480 A FR 9701480A FR 2759338 A1 FR2759338 A1 FR 2759338A1
Authority
FR
France
Prior art keywords
damping
cabin
planar
ring
rings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9701480A
Other languages
French (fr)
Other versions
FR2759338B1 (en
Inventor
Joel Hachet
Michel Gibeau
Jean Jacques Laporte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Transport SA
Original Assignee
GEC Alsthom Transport SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEC Alsthom Transport SA filed Critical GEC Alsthom Transport SA
Priority to FR9701480A priority Critical patent/FR2759338B1/en
Priority claimed from US09/020,344 external-priority patent/US6158356A/en
Priority to EP19980400328 priority patent/EP0936118B1/en
Publication of FR2759338A1 publication Critical patent/FR2759338A1/en
Application granted granted Critical
Publication of FR2759338B1 publication Critical patent/FR2759338B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61GCOUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00Buffers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • B61D15/06Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00Construction details of vehicle bodies
    • B61D17/04Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/06End walls

Abstract

The energy absorber (1) is interposed between the driving cab (2) and a bodywork (3). It has a parallelepiped shape, the largest face of which is located in a plane formed by the rear face (2A) of the driving cab and the front face (3A) of the bodywork. There are first (4) and second (5) plane facing rings not in contact. Pivots (6) integral with the upper part of the rings define a radial pivoting axis (X-X) in the top part of the driving cab. A shock absorber (9) is located in the lower part of the rings such that absorption occurs in the cab longitudinal direction. The cab chassis (10) is fixed to the lower part of the plane rings.

Description

ENERGY ABSORPTION DEVICE AND VEHICLE, ESPECIALLY
RAILWAY COMPRISING SUCH AN ABSORPTION DEVICE
The present invention relates to energy absorption devices, in general, and relates, more particularly, to an energy absorption device, in particular for a railway vehicle.

 In accordance with the state of the art, light shocks at the front of a vehicle, in particular a rail vehicle, are absorbed by means of a bumper mounted on absorbent elements or on a coupling.

 Such shocks can also be absorbed by means of buffers, which have little displacement in the direction of the shock.

 In order to absorb a shock of higher amplitude, energy absorption devices must necessarily allow displacements of large amplitude.

 A solution of the state of the art consists in using deformable boxes.

 These deformable boxes of the prior art have the major drawback of not being able to be arranged at the front of the vehicle because they would constitute an unacceptable extension of the vehicle.

 A known solution to this technical problem consists in integrating these deformable boxes under the driver's cab into the chassis.

 A major drawback of this solution is that the deformation of the deformable boxes of the prior art causes the deformation of the driving cabin and therefore the more or less significant deformation, for example, of the windshield and the console.

 The driver in the driver's cab can therefore be injured in an impact at the front of the vehicle.

 An object of the invention is therefore an energy absorption device comprising such an absorption device which does not have the drawbacks of the energy absorption devices of the prior art.

 Another object of the invention is an energy absorption device making it possible to keep the driver's cabin intact after a head-on or slightly crooked collision.

 According to the invention, the energy absorption device of generally parallelepipedal shape interposed between a driving cabin and a body, is characterized in that the face of said parallelepiped of larger surface is arranged in a plane formed by the face rear of a driver's cabin and the front of a body.

The energy absorption device of the invention also satisfies at least one of the following characteristics:
- the device includes:
a first planar ring and a second planar ring, said first and second planar rings facing each other without contact,
pivoting elements integral with the upper part of said first and second planar rings, said pivoting elements defining a pivot axis XX radial and in the upper part of said driving cabin,
at least one damping device arranged in the lower part of said first and second planar rings, the absorption taking place in the longitudinal direction of said driving cabin, and
a cabin chassis, arranged in the lower part of said driving cabin and integral with said lower part of said first and second planar rings,
the rear end of said cabin chassis is secured at least to the lower part of said first planar ring,
each damping device penetrates at least partially into said cabin chassis,
each damping device is confined between the lower parts of the first and second planar rings,
at least one of the damping devices penetrates at least partially into said cabin chassis, the other damping devices being confined between the lower parts of the first and second planar rings,
- at least one damping device consists of a front element capable of sliding in a fixed element,
the rear end of said fixed element of said damping device bears on the lower part of said second flat ring and the front end of said fixed element is disposed through said first flat ring by means of an orifice made in said first flat ring and said front element of said damping device is integral with said lower part of said first flat ring and is held in the initial position at the front end of said fixed element,
said damping devices are generally cylindrical in shape,
said front elements of said damping devices are housed in said cabin chassis,
each damping device consists of a structure of the honeycomb type disposed between said lower parts of said first and second planar rings,
said first planar ring being arranged parallel to the rear face of the driving cabin, the second planar ring is arranged parallel to the front face of said body,
the lower part of said second flat ring, on which the rear end of said fixed element bears, bears on the chassis of said body,
each pivot element comprises a first yoke and a second yoke,
- each pivoting element consists of a ball joint cooperating with a sliding bearing,
- Said cabin chassis may include on its front part front shock absorbers capable of absorbing light impacts.

 According to another characteristic of the invention, the vehicle, in particular rail, comprises an energy absorption device according to the invention.

 An advantage of the energy absorption device of the invention is to prevent the destruction of the driver's cabin during an impact.

 Another advantage of the energy absorption device of the invention is that the device can be arranged on demand.

 Another advantage of the energy absorption device of the invention is that it makes it possible to change the damping capacities.

 Another advantage of the energy absorption device of the invention is that it does not penalize the characteristics of the driving position, namely: grip, visibility and ergonomics.

 Another advantage of the energy absorption device of the invention is that it can be used several times.

 Another advantage of the energy absorption device of the invention is that it requires a reduced time for repairing the vehicle after collision.

 Another advantage of the energy absorption device of the invention is the possibility of using already proven absorption sub-assemblies and therefore of reducing costs.

Other objects, characteristics and advantages of the invention will appear on reading the description of the preferred embodiment of the energy absorption device, description made in the case of a railway vehicle and in conjunction with the drawings in which:
FIG. 1 is an exploded view, according to a preferred embodiment, of the energy absorption device according to the invention, and
- Figures 2 to 3 are side views of the energy absorption device of the invention, the energy absorption device being, successively, in the initial, intermediate and maximum positions.

 Figure 1 is an exploded view of the energy absorption device according to the invention.

 The energy absorption device 1 is of generally parallelepipedal shape and is interposed between the driving cabin 2 and the body 3.

 According to the invention, the face of the parallelepiped of larger surface is arranged in a plane formed by the rear face 2A of the driving cabin 2 and the front face 3A of the body 3.

 The energy absorption device 1 comprises a first plane ring 4 and a second plane ring 5, the first and second plane rings facing each other without touching.

 The first planar ring 4 being arranged parallel to the rear face 2A of the driving cabin 2, the second planar ring 5 is arranged parallel to the front face 3A of the passenger room 3.

 The first 4 and second 5 planar rings are integral in their upper part with pivoting elements 6.

 The pivoting elements 6 define a pivot axis X-X radial to the driver's cabin.

 Each pivoting element 6 comprises, for example, a first yoke 7 and a second yoke 8.

 The first 7 and second 8 yokes are likely to include several elements 7A, 7B, the assembly constituting the yoke.

 The lower part of the first yoke 7 is fixed to the upper part of the first plane ring 4.

 Similarly, the lower part of the second yoke 8 is fixed to the upper part of the second plane ring 5.

 The lower part of the energy absorption device 1 comprises at least one damping device 9 whose characteristics are such that the absorption takes place in the longitudinal direction of the driving cabin.

 In order to benefit from a large absorption curve and therefore for the absorption of large shocks, it is preferable that the damping devices 9 penetrate at least partially into the cabin chassis 10.

 In the case of weak impacts, the damping devices 9 are confined between the lower parts of the first 4 and second 5 planar rings.

 it is clear that it is possible to combine or even juxtapose these two types of damping devices 9.

 Each damping device 9 consists, for example, of a front element 9A capable of sliding in a fixed element 9B.

 The rear end of the fixed element 9B of the damping device 9 bears on the lower part of the second plane ring 5.

 The front element 9A is integral with the lower part of the first plane ring 4 and is held in the initial position at the front end of the fixed element 9B.

 The damping device 9 is, for example, of generally cylindrical shape.

 A cabin chassis 10, arranged in a known manner in the lower part of the driving cabin 2, makes it possible to house the front elements 9A of the damping devices 9.

 According to the embodiment shown in FIG. 2, the front elements 9A are not in contact with the cabin chassis 10.

 The cabin chassis 10 may have front shock absorbers 11 capable of absorbing light impacts on its front part.

 Figures 2 to 3 are side views of the energy absorbing device of the invention, the energy absorbing device being successively in the initial, intermediate and maximum positions.

 As indicated above, the rear end of the fixed element 9B of the damping device 9 bears on the lower part of the second plane ring 5.

 The front end of the fixed element 9B is disposed through the first plane ring 4 by means of an orifice made in this first plane ring 4.

 The lower part of the second planar ring 5, on which the rear end of the fixed element 9B is supported, is supported on the chassis 12 of the body constituting the passenger room 3.

 The front element 9A is integral with the lower part of the first plane ring 4 and is held in the initial position at the front end of the fixed element 9B.

 The rear end of the cabin chassis 10 is also secured at least to the lower part of the first plane ring 4 so as to allow the front elements 9A of the damping devices 9 to be accommodated.

 it follows from the above that the lower part of the first planar ring 4 is capable of pivoting with respect to the pivot axis radial to the driving cabin, the second planar ring remaining fixed and attached to the body constituting the passenger room 3 .

 As shown in Figure 2, in the initial position the first 4 and second 5 planar rings are parallel.

 As shown in Figures 3 and 4, in the intermediate and maximum position, the first 4 and second 5 planar rings are no longer parallel.

 The damping devices 9 act like pistons and allow the energy absorption device 1 to control the energy linked to the shock.

 The pivoting elements 6 of the energy absorption device 1 impose the rotation of the first plane ring 4 and makes it possible to control the direction of the deformation so as to transmit the force towards the chassis 12 of the body.

 It follows from the above that the energy absorption device of the invention is capable of absorbing shocks the direction of which forms an angle with the direction of movement of the vehicle.

 The energy linked to the mass and the speed of the vehicles, due to an impact on the front of the cabin chassis 10 or on the front shock absorbers 11, is stored by the energy absorption device 1.

 This energy absorption device therefore makes it possible to preserve the passenger compartment of the driving cabin for greater driver safety.

 The energy absorption device is reversible and thus admits a shock several times.

 The energy absorption device can thus be used in addition to the front shock absorbers 11.

 Each damping device 9 is also capable of being composed, according to an embodiment not shown, of a structure of the honeycomb type disposed between the lower parts of the first 4 and second 5 flat rings.

 Each pivoting element 6 is also capable of consisting, according to an embodiment not shown, of a ball joint cooperating with a sliding bearing.

Claims (15)

1. Shape energy absorption device (1)
 general parallelepipedal inserted between a cabin
 line (2) and a body (3), characterized in
 that the face of said parallelepiped of larger
 surface is arranged in a plane formed by the face
 rear (2A) of a driver's cab (2) and the front
 front (3A) of a box (3).
2. Device according to claim 1, which comprises:
 - a first planar ring (4) and a second planar ring
 (5), said first (4) and second (5) planar rings
 facing each other without contact,
 - pivoting elements (6) integral with the
 upper part of said first (4) and second (5)
 planar rings, said pivoting elements (6)
 defining a pivot axis X-X radial and in
 upper part of said driving cabin (2),
 - at least one damping device (9) arranged in
 the lower part of said first (4) and second
 (5) flat rings, absorption taking place in the
 longitudinal direction of said driver's cabin (2),
 and
 - a cabin chassis (10), arranged in the part
 bottom of said driving cabin (2) and integral
 of said lower part of said first (4) and
 second (5) flat rings.
3. Device according to any one of claims 1
 or 2, wherein the rear end of said chassis
 cabin (10) is integral at least with the part
 lower of said first planar ring (4).
4. Device according to any one of claims 1
 to 3, in which each damping device (9)
 at least partially penetrates said chassis
 cabin (10).
5. Device according to any one of claims 1
 to 3, in which each damping device (9) is
 confined between the lower parts of the first (4)
 and second (5) planar rings.
6. Device according to any one of claims 1
 to 3, in which at least one of the devices
 shock absorbers (9) at least partially penetrate into
 said cabin chassis (10), the other devices
 shock absorbers (9) being confined between the parts
 lower of the first (4) and second (5) rings
 plans.
 Device according to any one of claims 1
 to 6, in which at least one damping device
 (9) consists of a front element (9A) capable of
 slide in a fixed element (9B).
8. Device according to claim 7 not dependent on
 claim 5, wherein the rear end
 of said fixed element (9B) of said damping device
 (9) rests on the lower part of said second
 flat ring (5) and the front end of said element
 fixed (9B) is arranged through said first ring
 plane (4) by means of an orifice made in said
 first planar ring (4) and said front element (9A)
 said damping device (9) is integral with
 said lower part of said first planar ring (4)
 and is held in the initial position at the end
 before said fixed element (9B).
9. Device according to claim 8, in which
 said damping devices (9) are shaped
 general cylindrical.
10. Device according to any one of claims 1
 to 4 and 6 to 9, wherein said front elements (9A)
 said damping devices (9) are housed in
 said cabin chassis (10).
11. Device according to any one of claims 1
 to 6, in which each damping device (9) is
 consists of a honeycomb type structure
 disposed between said lower parts of said
 first (4) and second (5) planar rings.
12. Device according to any one of claims 1
 to 11, wherein said first planar ring (4) being
 arranged parallel to the rear face (2A) of the
 driver's cab (2), the second planar ring (5) is
 arranged parallel to the front face (3A) of said
 body (3).
13. Device according to claim 12, in which the
 lower part of said second flat ring (5), on
 which bears on the rear end of said element
 fixed (9B), rests on the frame (12) of said
 body (3).
14. Device according to any one of claims 1
 to 13, in which each pivot element (6)
 comprises a first yoke (7) and a second yoke (8) 15. Device according to any one of claims 1
 to 13, in which each pivoting element (6) is
 consists of a ball joint cooperating with a bearing
 sliding.
16. Device according to any one of claims 1
 to 15, wherein said cab chassis (10) can
 have shock absorbers on its front part
 front (11) capable of absorbing light shocks.
17. Vehicle, in particular rail, comprising a
 energy absorption device (1) as defined
 in any one of the preceding claims.
FR9701480A 1997-02-10 1997-02-10 Energy absorption device and vehicle, particularly railway, comprising such an absorption device Expired - Fee Related FR2759338B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9701480A FR2759338B1 (en) 1997-02-10 1997-02-10 Energy absorption device and vehicle, particularly railway, comprising such an absorption device
EP19980400328 EP0936118B1 (en) 1997-02-10 1998-02-12 Vehicle, especially railway vehicle, with an energy absorbing device

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
FR9701480A FR2759338B1 (en) 1997-02-10 1997-02-10 Energy absorption device and vehicle, particularly railway, comprising such an absorption device
US09/020,344 US6158356A (en) 1997-02-10 1998-02-09 Energy absorber device having a parallelepiped shape for absorbing impacts to a vehicle
CA 2226416 CA2226416C (en) 1997-02-10 1998-02-09 Energy absorption device and vehicle, notably railway, comprising such an absorption device
JP02823098A JP4068708B2 (en) 1997-02-10 1998-02-10 Energy absorbing device and vehicle for railway, including such device,
EP19980400328 EP0936118B1 (en) 1997-02-10 1998-02-12 Vehicle, especially railway vehicle, with an energy absorbing device
DE1998616961 DE69816961T2 (en) 1997-02-10 1998-02-12 Vehicle, in particular rail vehicle, with a device for energy distortion
AT98400328T AT246617T (en) 1997-02-10 1998-02-12 Vehicle, in particular rail vehicle, with a device for energy distortion
ES98400328T ES2203898T3 (en) 1997-02-10 1998-02-12 Vehicle, especially railway, including an energy absorption device.

Publications (2)

Publication Number Publication Date
FR2759338A1 true FR2759338A1 (en) 1998-08-14
FR2759338B1 FR2759338B1 (en) 1999-04-02

Family

ID=26151573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9701480A Expired - Fee Related FR2759338B1 (en) 1997-02-10 1997-02-10 Energy absorption device and vehicle, particularly railway, comprising such an absorption device

Country Status (7)

Country Link
EP (1) EP0936118B1 (en)
JP (1) JP4068708B2 (en)
AT (1) AT246617T (en)
CA (1) CA2226416C (en)
DE (1) DE69816961T2 (en)
ES (1) ES2203898T3 (en)
FR (1) FR2759338B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155257A1 (en) * 2001-11-09 2003-05-22 Alstom Lhb Gmbh Collision protection device for rail vehicles
EP1854695A1 (en) * 2006-05-10 2007-11-14 Hitachi, Ltd. Collision energy absorbing apparatus and railway vehicle equipped with the same
WO2014040896A1 (en) * 2012-09-13 2014-03-20 Siemens Ag Österreich Rail vehicle having crash equipment

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GB2275455B (en) * 1993-02-27 1997-02-12 British Aerospace Container for fluids
CA2387344C (en) 2000-08-28 2006-11-28 Mitsubishi Heavy Industries, Ltd. Vehicle body structure
FR2818224B1 (en) * 2000-12-18 2003-01-24 Alstom Rail vehicle with driving cabin comprising an energy absorbing structure suitable for collision above the vehicle chassis
DE602004009942T2 (en) * 2003-09-19 2008-10-16 Siemens Transportation Systems Inc., Sacramento INTEGRATED IMPACT PROTECTION SYSTEM
JP4712604B2 (en) * 2006-05-10 2011-06-29 株式会社日立製作所 Transport equipment
DE102006043926A1 (en) * 2006-09-14 2008-03-27 Voith Turbo Lokomotivtechnik Gmbh & Co. Kg Locomotive
KR100916596B1 (en) 2007-12-06 2009-09-11 한국철도기술연구원 railway vehicle head structure for absorbing shock power
DE102011085163A1 (en) 2011-10-25 2013-04-25 Bombardier Transportation Gmbh Front arrangement for a vehicle, in particular for a rail vehicle, with a windscreen cleaning device
CN102661347A (en) * 2012-05-10 2012-09-12 上海理工大学 Impact damper
DE102015205283A1 (en) 2015-03-24 2016-09-29 Bombardier Transportation Gmbh Front arrangement of a rail vehicle and method for operating and producing the rail vehicle
DE102016210004A1 (en) * 2016-06-07 2017-12-07 Siemens Aktiengesellschaft Vehicle, in particular rail vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693412A (en) * 1927-10-29 1928-11-27 Taylor George Washington Safety device for passenger coaches and other vehicles
DE482279C (en) * 1926-09-05 1929-09-11 Nikolaus Basenach Railroad car with protection against the nesting in clashes
DE1123696B (en) * 1957-08-28 1962-02-15 Bruno Kirchhoff Dipl Ing Pushing device for rail vehicles
FR2715904A1 (en) * 1994-02-08 1995-08-11 Sardou Max Vehicle chassis construction for use in train locomotives

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482279C (en) * 1926-09-05 1929-09-11 Nikolaus Basenach Railroad car with protection against the nesting in clashes
US1693412A (en) * 1927-10-29 1928-11-27 Taylor George Washington Safety device for passenger coaches and other vehicles
DE1123696B (en) * 1957-08-28 1962-02-15 Bruno Kirchhoff Dipl Ing Pushing device for rail vehicles
FR2715904A1 (en) * 1994-02-08 1995-08-11 Sardou Max Vehicle chassis construction for use in train locomotives

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155257A1 (en) * 2001-11-09 2003-05-22 Alstom Lhb Gmbh Collision protection device for rail vehicles
DE10155257B4 (en) * 2001-11-09 2008-02-21 Alstom Lhb Gmbh Collision protection device for rail vehicles
EP1854695A1 (en) * 2006-05-10 2007-11-14 Hitachi, Ltd. Collision energy absorbing apparatus and railway vehicle equipped with the same
WO2014040896A1 (en) * 2012-09-13 2014-03-20 Siemens Ag Österreich Rail vehicle having crash equipment

Also Published As

Publication number Publication date
JP4068708B2 (en) 2008-03-26
EP0936118B1 (en) 2003-08-06
AT246617T (en) 2003-08-15
JPH10226334A (en) 1998-08-25
EP0936118A1 (en) 1999-08-18
DE69816961T2 (en) 2004-07-22
CA2226416A1 (en) 1998-08-10
FR2759338B1 (en) 1999-04-02
DE69816961D1 (en) 2003-09-11
ES2203898T3 (en) 2004-04-16
CA2226416C (en) 2006-11-14

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