EP1800988B1 - Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon - Google Patents

Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon Download PDF

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Publication number
EP1800988B1
EP1800988B1 EP06405447A EP06405447A EP1800988B1 EP 1800988 B1 EP1800988 B1 EP 1800988B1 EP 06405447 A EP06405447 A EP 06405447A EP 06405447 A EP06405447 A EP 06405447A EP 1800988 B1 EP1800988 B1 EP 1800988B1
Authority
EP
European Patent Office
Prior art keywords
buffer
recess
buffer plate
head
plate
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.)
Not-in-force
Application number
EP06405447A
Other languages
German (de)
English (en)
Other versions
EP1800988A1 (fr
Inventor
Otto Ziegler
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.)
Schwab Verkehrstechnik AG
Original Assignee
Schwab Verkehrstechnik AG
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 Schwab Verkehrstechnik AG filed Critical Schwab Verkehrstechnik AG
Publication of EP1800988A1 publication Critical patent/EP1800988A1/fr
Application granted granted Critical
Publication of EP1800988B1 publication Critical patent/EP1800988B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/18—Details

Definitions

  • the invention relates to a buffer for rail vehicles according to the preamble of claim 1 and a method for producing the buffer according to the preamble of claim 7.
  • the buffer head is usually provided with a recess in which a plastic buffer plate is received and fixed.
  • the buffer head is occupied to form a shock surface with an inner part made of plastic and an outer part made of steel.
  • the outer part is provided with a conically widening in the direction of the buffer head bore. In this hole, the provided with a corresponding edge inner part is held.
  • the outer part is attached to the buffer head with the help of rivets.
  • a buffer for rail vehicles in which the buffer plate is provided with a recess in which a plastic buffer plate is received.
  • the buffer plate is elastically deformed by compressive load and then fixed along its circumference in the deformed position by means of a first sleeve.
  • the first sleeve is placed and aligned on the recess of the buffer plate, so that the buffer plate can be pressed into the recess.
  • the buffer plate relaxes by utilizing its material elasticity, so that it is then fixed in a form-fitting manner along the edge in the recess.
  • the respective recess in the buffer plate has a smooth bottom and the buffer plate is neither by mechanical Fixing means still fixed by gluing at the bottom of the recess.
  • the buffer plate is damaged when exposed to lateral impact forces, such as those that can occur when passing through tight bends.
  • lateral impact forces such as those that can occur when passing through tight bends.
  • the side edge of a buffer head acts on the buffer plate of the counter-buffer in such a way that the buffer plate begins to bulge and thereby kinked, sheared or completely pushed out of the recess. This is due primarily to the fact that the back of the respective buffer plate is fixed only by clamping in the recess and there is no positive or non-positive connection with the bottom of the recess.
  • the buffer head is provided with a round opening, which widens conically towards the buffer head.
  • the opening is embedded in a head part, which is fastened by means of rivets on the actual buffer head.
  • the buffer plate is inserted in this case from behind into the head part and the head part is then fastened by means of the rivets on the buffer head.
  • the opening is recessed directly into the buffer head.
  • a fastening tool is provided, by means of which the buffer plate is deflected so far that it can be inserted into the opening. After removal of the fastening tool, the buffer plate relaxes, whereby she fixes herself in the opening.
  • an adhesive bond can be provided for fastening the buffer plate in the recess.
  • the buffer plate can also be poured into the recess, in which case the recess can be provided with projections or recesses to form a toothing with the cast-in buffer plate.
  • the invention aims to develop a buffer for rail vehicles such that a buffer plate made of plastic can be fixed in a recess of the buffer head, that the risk of damaging the buffer plate is largely eliminated even when exposed to lateral forces, the production cost of the buffer should not be increased significantly.
  • a buffer according to claim 1 is provided according to the invention.
  • a method for producing the buffer is given in claim 7.
  • the basic idea of the invention is to provide the bottom of the recess with elevations and / or depressions, which produce a positive and non-positive connection with the substantially smooth back of the buffer plate in the load case. Since the existing of a plastic such as polyamide buffer plate compared to the usual steel buffer head is comparatively soft and resilient, the buffer plate is under the action of impact forces, even if they have a large lateral component, against said elevations and / or pressed into the wells.
  • the surface of the buffer plate conforms to the structure of the elevations and / or depressions, so that a positive and non-positive connection between the bottom of the buffer head and the buffer plate is effected, which ensures that the buffer plate is not laterally under the action of lateral forces can shift appreciably and does not begin to bulge appreciably and thus ultimately will not be damaged.
  • a method for producing a buffer head is also specified, in which the recess is provided with a surface enlarging structure. Preferred developments of the method are specified in the dependent claims 8 to 10.
  • FIG. 1 shows a formed according to the prior art buffer head in cross section.
  • the buffer head forms part of a buffer for rail vehicles, as for example from the EP-A-1 083 105 is known. Since the basic structure of such buffers is known, essentially only addresses the essential features of the invention in connection with the buffer.
  • the buffer head 10 also called buffer plate, consists essentially of a plate 11 which is provided on the side facing away from the rail vehicle with a recess 12 for receiving a buffer plate made of plastic.
  • the recess 12 is, seen in cross-section, designed substantially dovetail-shaped. In this recess 12 which can not be seen from this illustration, the buffer plate can be fixed by clamping.
  • Buffer or buffer heads 10 have proven very useful in practice with such buffer plates, it may happen in individual cases that the buffer plate is so heavily loaded by the counter buffer, namely by the edge of the buffer head of the counter buffer when driving through a curve, ie in the transverse direction in that the buffer plate begins to bulge and thereby kinked, sheared or pushed out of the recess.
  • Fig. 2 shows a inventively designed buffer head 1 in longitudinal section.
  • the bottom 4 of the recessed into the buffer head 1 and the base plate 2 recess 3 is provided with a plurality of groove-shaped recess 5.
  • the Fig. 3 shows the buffer head 1 according Fig. 2 with inserted into the recess 3 buffer plate 6.
  • the buffer plate 6 may for example be made of polyamide and is preferably according to the in the EP-A-1 354 778 described method used in the recess.
  • the groove-shaped recesses 5 are to ensure that in the case of loading a positive and non-positive connection between the back 7 of the buffer plate 6 and the bottom 4 of the recess 3 (FIGS. Fig. 2 ) is produced by the buffer plate 6 is pressed by the counter-buffer against these groove-shaped recesses 5 and against the groove-shaped recesses 5 bounding elevations, whereby the buffer plate 6 by their material elastic resilience quasi engages in these grooves, so that they are not laterally displaced can be.
  • the buffer plate 6 by their material elastic resilience quasi engages in these grooves, so that they are not laterally displaced can be.
  • Fig. 4 a plan view of the buffer head 1 according Fig. 2 ,
  • the recess 3 is round.
  • the recessed in the bottom 4 of the recess 3 groove-shaped recesses 5 are shown in a schematic representation, in which case only a spiral groove is shown with exaggerated size shown slope.
  • the buffer head 1 has a greater width than height.
  • a horizontally extending in the transverse direction through the center of the base plate 2 is designated H.
  • both the spherical front side of the buffer head 1 and the recess 3 and the recess (s) 5 are produced by machining on a lathe.
  • a rectangular base plate 2 is used, which is provided on the lathe with a spherical front side.
  • the recess 3 is produced by boring by means of a suitable machining tool.
  • the bottom 4 of the recess 3 is provided with said groove structure, which also takes place by machining.
  • the groove is attached in the form of a spiral.
  • the lathe machining tool centers in the center 4 of the recess 3 in the bottom 4 and is then moved radially outwards, while the buffer head 1 rotates in relation to the machining tool.
  • the groove can also be made in reverse by moving the machining tool from the outside inwards.
  • the groove produced in this way preferably has a depth between 1 and 2 mm and a pitch of 1 to 3 mm.
  • elevations and / or depressions 5 do not run parallel to the horizontal H, but at least partially oblique, curved or transversely thereto, so that the buffer plate 6 in the action of Side forces not appreciably in the lateral direction, ie parallel to the horizontal H, can move.
  • the bottom 4 of the recess 3 can also be provided by laser processing, forging, erosion or by embossing with recesses 5, which form a surface enlarging structure.
  • the basic shape of the buffer head 1 can also be produced in other ways, for example by forging, casting or by bending.
  • depressions 5 surveys could be provided, for example, which are generated for example during casting. By casting surveys, of course, recesses automatically form again between the surveys.
  • such a structure has the advantage that no additional connection, for example in the form of screws or an adhesive bond between the buffer plate 6 and the buffer head 1 must be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Small-Scale Networks (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Body Structure For Vehicles (AREA)

Claims (10)

  1. Tampon pour véhicules ferroviaires, comprenant une tête de tampon (1) pourvue d'un évidement (3), tête dans laquelle est logée et fixée une plaque de tampon (6) constituée de matière plastique, caractérisé en ce que la plaque de tampon (6) comprend sur la face arrière (7) tournée vers le fond (4) de l'évidement (3) une surface sensiblement lisse, tandis que le fond (4) de l'évidement (3) est pourvu d'élévations et /ou de creux (5).
  2. Tampon selon la revendication 1, caractérisé en ce qu'un ou plusieurs creux de type rainure (5) est/sont pratiqué(s) dans le fond (4) de l'évidement (3).
  3. Tampon selon la revendication 1 ou 2, caractérisé en ce que le(s) creux de type rainure (5) est/sont pratiqué(s) en spirale dans le fond (4) de l'évidement (3).
  4. Tampon selon l'une quelconque des revendications précédentes, caractérisé en ce que l'évidement (3) pratiqué dans la tête de tampon (1) et la plaque de tampon (6) sont ronds.
  5. Tampon selon la revendication 4, caractérisé en ce qu'un creux (5) s'étendant en spirale est pratiqué dans le fond (4) de l'évidement (3), lequel creux s'étend depuis le centre (8) de l'évidement (3) en spirale vers l'extérieur et/ou de l'extérieur vers l'intérieur.
  6. Tampon selon l'une quelconque des revendications précédentes, caractérisé en ce que l'évidement (3), vu en coupe transversale, est conçu sensiblement en forme de queue d'aronde et la plaque de tampon (6) est conçue de manière correspondante de telle sorte qu'elle est maintenue par serrage dans l'évidement (3).
  7. Procédé de fabrication d'un tampon pour véhicules ferroviaires, comprenant une tête de tampon (1) pourvue d'un évidement (3), laquelle tête est conçue pour loger une plaque de tampon (6) constituée de matière plastique, la plaque de tampon (6) comprenant sur la face arrière (7) tournée vers le fond (4) de l'évidement (3) une surface sensiblement lisse, caractérisé en ce que le fond (4) de l'évidement (3) est pourvu, par usinage par enlèvement de copeaux, par usinage laser, forgeage, érosion, estampage ou coulée de creux (5) et/ou d'élévations.
  8. Procédé selon la revendication 7, caractérisé en ce que la tête de tampon (1) est pourvue par usinage par enlèvement de copeaux sur un tour de l'évidement (3), et en ce qu'après cela, la structure est pratiquée dans le fond (4) de l'évidement (3).
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que la tête de tampon (1) est fixée sur un tour et la structure est pratiquée sous forme d'un ou de plusieurs creux (5) dans le fond (4) de l'évidement (3).
  10. Procédé selon la revendication 9, caractérisé en ce que le creux (5) respectif est pratiqué par le déplacement d'un outil d'usinage depuis le centre (8) de l'évidement (3) dans le sens radial vers l'extérieur dans le fond (4) de l'évidement (3).
EP06405447A 2005-12-22 2006-10-23 Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon Not-in-force EP1800988B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02042/05A CH701575B1 (de) 2005-12-22 2005-12-22 Pufferkopf für Schienenfahrzeuge sowie Verfahren zur Herstellung des Pufferkopfs.

Publications (2)

Publication Number Publication Date
EP1800988A1 EP1800988A1 (fr) 2007-06-27
EP1800988B1 true EP1800988B1 (fr) 2008-12-03

Family

ID=36588895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06405447A Not-in-force EP1800988B1 (fr) 2005-12-22 2006-10-23 Tampon pour véhicules ferroviaires et procédé pour la fabrication du tampon

Country Status (5)

Country Link
EP (1) EP1800988B1 (fr)
AT (1) ATE416115T1 (fr)
CH (1) CH701575B1 (fr)
DE (1) DE502006002249D1 (fr)
ES (1) ES2317480T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705135B1 (de) 2011-06-21 2015-01-15 Schwab Verkehrstechnik Ag Puffer für ein Schienenfahrzeug.
CN109834230B (zh) * 2018-11-02 2024-06-28 唐山市鑫彬铁路配件厂 一种缓冲器箱体的浇铸模具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809137A (en) 1956-07-21 1959-02-18 John Henry Onions Improvements in or relating to plastic inserts for railway buffer heads
CH370109A (de) 1959-05-13 1963-06-30 Schweiz Wagons Aufzuegefab Puffer, insbesondere für Schienenfahrzeuge
DE19726516A1 (de) * 1997-06-23 1998-12-24 Duewag Ag Puffer für Schienenfahrzeuge
EP1083105B1 (fr) 1999-09-08 2004-10-13 Schwab Verkehrstechnik AG Tampon pour véhicules ferroviaires
DE50309564D1 (de) 2002-04-17 2008-05-21 Schwab Verkehrstechnik Ag Verfahren zum Anbringen von aus Kunststoff bestehenden Pufferplatten an Puffertellern von Puffern von Schienenfahrzeugen, sowie Vorrichtung zur Durchführung des Verfahrens und Puffer hergestellt nach dem Verfahren

Also Published As

Publication number Publication date
EP1800988A1 (fr) 2007-06-27
ES2317480T3 (es) 2009-04-16
CH701575B1 (de) 2011-02-15
ATE416115T1 (de) 2008-12-15
DE502006002249D1 (de) 2009-01-15

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