FR2324494A1 - Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring - Google Patents

Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring

Info

Publication number
FR2324494A1
FR2324494A1 FR7529035A FR7529035A FR2324494A1 FR 2324494 A1 FR2324494 A1 FR 2324494A1 FR 7529035 A FR7529035 A FR 7529035A FR 7529035 A FR7529035 A FR 7529035A FR 2324494 A1 FR2324494 A1 FR 2324494A1
Authority
FR
France
Prior art keywords
spring
piston type
return spring
type automatic
compression return
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.)
Withdrawn
Application number
FR7529035A
Other languages
French (fr)
Inventor
Jean-Pierre Bechu
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.)
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
Original Assignee
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes 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 Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA filed Critical Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
Priority to FR7529035A priority Critical patent/FR2324494A1/en
Publication of FR2324494A1 publication Critical patent/FR2324494A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/08—Draw-gear combined with buffing appliances with fluid springs or fluid shock-absorbers; Combinations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Springs (AREA)

Abstract

The automatic railway coupler has a piston type hydraulic shock adsorber and compression return spring. The spring is made of light cellular flexible material and is either cylindrical or prismatic in shape. The ratio of spring area to length is roughly 3 to 4 and its compressability at least 80% of its length. This spring consists of stacked elements with projections and hollows to mate with each other and hold the assembly together. On the outer lateral surface of the spring are grooves to help retain shape in the compressed state.
FR7529035A 1975-09-22 1975-09-22 Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring Withdrawn FR2324494A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7529035A FR2324494A1 (en) 1975-09-22 1975-09-22 Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7529035A FR2324494A1 (en) 1975-09-22 1975-09-22 Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring

Publications (1)

Publication Number Publication Date
FR2324494A1 true FR2324494A1 (en) 1977-04-15

Family

ID=9160309

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529035A Withdrawn FR2324494A1 (en) 1975-09-22 1975-09-22 Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring

Country Status (1)

Country Link
FR (1) FR2324494A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004006998A1 (en) * 2002-07-11 2004-01-22 Tecpharma Licensing Ag Needle-free injection device
AU2003243875B2 (en) * 2002-07-11 2006-07-06 Tecpharma Licensing Ag Needle-free injection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004006998A1 (en) * 2002-07-11 2004-01-22 Tecpharma Licensing Ag Needle-free injection device
AU2003243875B2 (en) * 2002-07-11 2006-07-06 Tecpharma Licensing Ag Needle-free injection device

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Legal Events

Date Code Title Description
ST Notification of lapse