EP1038751A1 - Tampon pour véhicules ferroviaires - Google Patents

Tampon pour véhicules ferroviaires Download PDF

Info

Publication number
EP1038751A1
EP1038751A1 EP00810060A EP00810060A EP1038751A1 EP 1038751 A1 EP1038751 A1 EP 1038751A1 EP 00810060 A EP00810060 A EP 00810060A EP 00810060 A EP00810060 A EP 00810060A EP 1038751 A1 EP1038751 A1 EP 1038751A1
Authority
EP
European Patent Office
Prior art keywords
buffer
snap ring
sleeve
tappet
plunger
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
EP00810060A
Other languages
German (de)
English (en)
Other versions
EP1038751B1 (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 EP1038751A1 publication Critical patent/EP1038751A1/fr
Application granted granted Critical
Publication of EP1038751B1 publication Critical patent/EP1038751B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.
  • Such buffers are known in various embodiments.
  • a problem when assembling such buffers is that the spring assembly or the buffer tappet must be biased against the buffer sleeve so that the End stop can be mounted.
  • the type and design of the A wide variety of variants are known.
  • From DE-PS-2657837 is a generic, as a device for resilient Absorption of impact forces known buffer.
  • This buffer consists of an outer housing part and an inner housing part.
  • the end stop will in this buffer formed by a large number of balls, which after joining of the two housing parts are filled through an opening. To after filling the balls, the opening is closed with a feather key.
  • the object of the invention is to provide one according to the preamble of Claim 1 trained buffers such that it is inexpensive manufactured and can be assembled easily and quickly.
  • the basic structure of a buffer is explained in more detail with reference to FIG. 1, wherein only deal with the parts relevant in connection with the invention becomes.
  • the buffer has one to be fastened to the rail vehicle (not shown)
  • Buffer sleeve 1 and a buffer plunger 2 on the front with a welded-on buffer plate 3 is provided.
  • the front of the buffer plate 3 is formed by a wear plate 4 made of plastic.
  • the buffer plunger 2 is axially displaceably guided on the buffer sleeve 1 by this radial from the buffer tappet 2 is included.
  • Both the buffer sleeve 1 and the buffer plunger 2 are essentially hollow cylindrical design.
  • the left end face 5 of the buffer sleeve 1 is used as a stop to limit the maximum insertion of the buffer plunger 2 which the buffer plunger 2 put on with the rear 6 of the buffer plate 3 can.
  • the buffer plunger 2 is in such a way via a preloaded spring assembly 9 Buffer sleeve 1 supported that he counter to the spring force in the direction of the buffer sleeve 1 can be inserted.
  • Buffer sleeve 1 supported that he counter to the spring force in the direction of the buffer sleeve 1 can be inserted.
  • the latter provided with a collar 17 on the inside.
  • To reduce the friction between the buffer sleeve 1 and the buffer plunger 2 are circular plastic elements 7 provided.
  • the buffer sleeve 1 has a section 10 on its rear side on, whose diameter compared to the inner diameter of the buffer tappet 2 in the end area facing away from the buffer plate 3 by at least twice the radial height of the snap ring 8 is formed smaller. If the snap ring 8 like in the present example has a circular cross-section, is below the radial height Understand the diameter of the cross section of the snap ring 8.
  • the snap ring 8 When installing the buffer, make sure that the snap ring 8 and only then is the buffer sleeve 1 pushed onto the buffer plunger 2. The Snap ring 8 is pushed down to section 10. Then the buffer pestle 2 overcoming the spring force to the right against the buffer sleeve 1 pressed that the groove provided for receiving the snap ring 8 located above section 10. Then the clamping ring 8 in a known Pressed together and in a recess in the buffer plunger 2 be snapped into place.
  • the snap ring 8 is preferably with recesses (not drawn) provided on which a tool for compressing the Snap rings 8 can be attached.
  • the height of the snap ring 8 is made smaller than the inner diameter of the buffer tappet 2 in the end area facing away from the buffer plate 3, on the one hand, enables that the snap ring 8 can be compressed as far as that Outside diameter is reduced so far that it fits into the corresponding groove in the buffer tappet 2 can be used. It also makes the harsh environmental conditions Taken into account by between the snap ring 8 and the Buffer sleeve 1 enough space remains so that the buffer plunger 2 even when dirty Buffer sleeve 1 can be easily moved to the right.
  • FIG. 2 shows the snap ring 8 in an enlarged view compared to FIG. 1 together with the area surrounding the buffer sleeve 1 and the buffer plunger 2.
  • the groove 12 can be seen, in which the snap ring 8 is fixed on the inside of the buffer plunger 2.
  • the buffer sleeve 1 is with a provided on the outside circumferential projection 13, which as a stop is designed for the snap ring 8.
  • This projection 13 has one with the shape of the snap ring 8 corresponding recess 14, the Snap ring 8, seen in cross section, is essentially round.
  • the Buffer sleeve 1 is also essentially conical with the recess 14 provided towards section 15.
  • This design ensures that the snap ring 8 when bumping against the elevation 13, that is at maximum Extending the buffer plunger 2 is held in position in the groove 12 because of Outside diameter of the buffer sleeve 1 in the region of the recess 14 practically Corresponds to the inner diameter of the clamping ring 8 and the latter thereby on its inside is supported.
  • Fig. 3 shows an alternative embodiment of a buffer in a partially sectioned Presentation.
  • the buffer sleeve 1a comprises the buffer tappet 2a radially, so that the buffer plunger 2a is guided in the buffer sleeve 1a.
  • the snap ring 8a is in the end area facing the buffer plate 3a on the inside the buffer sleeve 1a arranged, while the buffer plunger 2a on the Outside with the projection designed as a stop for the snap ring 8a 13a is provided.
  • This projection 13a is analogous to the previous embodiment again one that essentially corresponds to the shape of the snap ring 8a Recess 14a and is substantially conical the recess 14a tapered portion. Also in this embodiment of a buffer, make sure that when installing the Snap ring 8a and only then the buffer sleeve 1a pushed onto the buffer plunger 2a becomes.
  • a buffer designed according to the invention can be manufactured inexpensively and assembled easily and quickly.
  • Another advantage is that the buffer is easy to maintain. To do this, the buffer tappet 2, 2a must be adjusted against the spring preload to the right that the snap ring 8, 8a is above the section 10, 10a is located. In this position, the snap ring 8, 8a can be used by means of a suitable Tool are removed from the groove 12, 12a. Then the buffer tappet 2, 2a are withdrawn from the buffer sleeve 1, 1a, with all those requiring maintenance Parts are easily accessible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Braking Arrangements (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Vibration Dampers (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
EP00810060A 1999-02-23 2000-01-24 Tampon pour véhicules ferroviaires Expired - Lifetime EP1038751B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19907689 1999-02-23
DE19907689 1999-02-23

Publications (2)

Publication Number Publication Date
EP1038751A1 true EP1038751A1 (fr) 2000-09-27
EP1038751B1 EP1038751B1 (fr) 2001-12-12

Family

ID=7898514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810060A Expired - Lifetime EP1038751B1 (fr) 1999-02-23 2000-01-24 Tampon pour véhicules ferroviaires

Country Status (4)

Country Link
EP (1) EP1038751B1 (fr)
AT (1) ATE210574T1 (fr)
DE (1) DE50000054D1 (fr)
ES (1) ES2169718T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857343A2 (fr) 2006-05-15 2007-11-21 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657837A1 (de) * 1976-12-21 1978-06-22 Ringfeder Gmbh Vorrichtung zur federnden aufnahme von stosskraeften
DE2657836A1 (de) * 1976-12-21 1978-06-22 Ringfeder Gmbh Vorrichtung zur federnden aufnahme von stosskraeften
US4175667A (en) * 1976-10-15 1979-11-27 Miner Enterprises, Inc. Method of preshortening draft gear
DE9307051U1 (de) 1993-05-10 1993-07-15 Ringfeder Gmbh, 4150 Krefeld Hülsenpuffer zur federnden Aufnahme von Stoßkräften, insbesondere für Schienenfahrzeuge
DE19813335A1 (de) * 1998-03-26 1999-09-30 Mannesmann Rexroth Ag Pufferanordnung für Fahrzeuge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175667A (en) * 1976-10-15 1979-11-27 Miner Enterprises, Inc. Method of preshortening draft gear
DE2657837A1 (de) * 1976-12-21 1978-06-22 Ringfeder Gmbh Vorrichtung zur federnden aufnahme von stosskraeften
DE2657836A1 (de) * 1976-12-21 1978-06-22 Ringfeder Gmbh Vorrichtung zur federnden aufnahme von stosskraeften
DE9307051U1 (de) 1993-05-10 1993-07-15 Ringfeder Gmbh, 4150 Krefeld Hülsenpuffer zur federnden Aufnahme von Stoßkräften, insbesondere für Schienenfahrzeuge
DE19813335A1 (de) * 1998-03-26 1999-09-30 Mannesmann Rexroth Ag Pufferanordnung für Fahrzeuge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857343A2 (fr) 2006-05-15 2007-11-21 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail
EP1857343A3 (fr) * 2006-05-15 2008-10-08 Schwab Verkehrstechnik AG Tampon pour véhicules sur rail

Also Published As

Publication number Publication date
EP1038751B1 (fr) 2001-12-12
ATE210574T1 (de) 2001-12-15
ES2169718T3 (es) 2002-07-16
DE50000054D1 (de) 2002-01-24

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