EP0114829B1 - Poteau avec raccord elastique - Google Patents

Poteau avec raccord elastique Download PDF

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Publication number
EP0114829B1
EP0114829B1 EP83901109A EP83901109A EP0114829B1 EP 0114829 B1 EP0114829 B1 EP 0114829B1 EP 83901109 A EP83901109 A EP 83901109A EP 83901109 A EP83901109 A EP 83901109A EP 0114829 B1 EP0114829 B1 EP 0114829B1
Authority
EP
European Patent Office
Prior art keywords
post
tubes
rod
joint
annular
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.)
Expired
Application number
EP83901109A
Other languages
German (de)
English (en)
Other versions
EP0114829A1 (fr
Inventor
Kjell Jansson
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.)
SAMHALL FORMEL
Original Assignee
Samhall Formel
FORMELPRODUKTER
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
Priority claimed from SE8203369A external-priority patent/SE451180B/sv
Application filed by Samhall Formel, FORMELPRODUKTER filed Critical Samhall Formel
Priority to AT83901109T priority Critical patent/ATE33944T1/de
Publication of EP0114829A1 publication Critical patent/EP0114829A1/fr
Application granted granted Critical
Publication of EP0114829B1 publication Critical patent/EP0114829B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/06—Apparatus for setting-out or dividing courts
    • A63C19/062—Slalom gate poles, posts or marking sticks for sport fields
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement

Definitions

  • the present invention relates to a post including two post tubes, the opposing end portions of which are connected by a spring flex joint, which includes an elongate solid elastic body surrounded by two annular bodies, in which the elongate solid elastic body is fastened under pretension, and on which the respective post tubes are slipped, the end faces of said annular bodies facing each other forming part of said flex joint by being pressed against each other under the action of the pretension applied to the elongate solid elastic body.
  • a post is known through FR-A-2 044 032.
  • posts which include two tubes, the respective mutually opposing end portions of which are united by a spring joint, comprising an elongate spring means extending inside the pipes and with longitudinal bias being anchored relative the tubes.
  • the spring means is normally a coil spring.
  • FR-A-2 044 032 there is proposed the use of a rubber chord as spring means. At either end this chord has a head, which is inserted in a recess in an associated joint member. The joint members are kept urged towards each other by the bias of the rubber chord, each member carrying a post tube.
  • the joint structure of the French patent is furthermore such as to negate the use of any kind of regulating mechanism for the bias.
  • the object of the present invention is to provide a spring joint for a post of the kind defined in the introduction, the embodiment of the joint being simple and cheap, even so allowing a large number of flexings at the joint without risking collapse of the joint structure.
  • the structure shall also allow the selection of sufficiently large bias for the resilience of the joint to be very stiff as well as allowing the use of adjustment means for the bias.
  • the elongate solid elastic body is a rod of polymeric material, which to a substantial extent fills out the cross-section of the post tubes, in that said two annular bodies each consist of a tube, in that a portion of the length of the rod is surrounded by these two tubes, to which the rod is directly fastened at those ends of said two tubes that are furthest from each other by means of at least one rivet passing through the rod at each fastening site.
  • Figure 1 is an axial section through a slalom post
  • Figure 2 illustrates a portion of a slalom post in axial section to clarify a modification of the embodiment in Figure 1
  • Figure 3 is an axial section of a further embodiment of a slalom post
  • Figure 4 illustrates to a much enlarged scale a section IV of the embodiment in Figure 3 when the post is flexed at the joint.
  • the joint includes a substantially rod-shaped core body 2 from polymeric material such as rubber, polyurethane etcetera.
  • the body 2 is enclosed biassed or pretensioned in its longitudinal direction in two sleeves 4 made from steel or the like, the end surfaces 5 of these sleeves being pressed against each other by the bias.
  • a tube 6, of hard plastics, aluminium etcetera is disposed for enclosing the sleeves 4.
  • the core body 2 is fastened by rivets 10, 12 to said sleeves. Each tube 6 engages a shoulder 11 on the respective sleeve 4.
  • the joint may be assembled with tension in the core body 2 as follows.
  • the lower sleeve 4 is brought over the core body 2 such that it assumes the position shown, and the core body is fixed in the sleeve by the lower rivet 10, or two crossing rivets.
  • the upper sleeve 4 is brought over the core body 2, and tensional stress is exerted on the core body 2 in its longitudinal direction by the lower sleeve 4 being suitably fixed and a tensional force in a direction away from the sleeves 4 being applied to the projecting end of the body 2.
  • the upper rivet 12 or two crossing rivets are arranged through the upper end of the sleeve 4 and the core body 2.
  • the tensional force is removed the body is thus axially pretensioned with the aid of rivets 10 and 12.
  • the tubes 6 are put in place.
  • FIG. 2 A modification of the embodiment in Figure 1 is illustrated in Figure 2.
  • the upper sleeve is made in two parts 14 and 16, which are in thread engagement 18 with each other.
  • the sleeve part 14 is fixed against axial upwards movement of the upper end of the core body 2 by a pin 20, which only passes through the core body 2.
  • the bias in the core body 2 may now be adjusted and even applied by screwing the sleeve 14 on sleeve 16 after the upper tube 6 has been slipped upwards. No corresponding rotation of the core body 2 will take place since the pin 20 does not pass through the sleeve 14.
  • the core body 2 is surrounded at the joint by an upper joint sleeve 22 and a reinforcing sleeve 24.
  • the tube 6 is slipped over both tubes 22 and 24.
  • a rivet 26 passes through the reinforcing sleeve 24 and the tube 6 so that the core body 2 is kept fixed with respect to the latter.
  • a lower joint sleeve is made up from two sleeve parts 28 and 30, which are threaded to each other at 32. After pretensioning the core body 2, a rivet 34 is passed through sleeve part 30. The lower tube 6 is then slipped over the sleeve parts 28, 30. For adjusting the pretension the lower tube 6 is drawn downwardly to uncover the sleeve 30 for manipulation.
  • the upper sleeve part 22 is terminated by a shoulder 36 surrounding a radially projecting flange 38 on the lower sleeve part 28.
  • the shoulder 36 and flange 38 serve to locate sleeve parts 22 and 28 mutuaiiy.
  • Figure 4 illustrates the situation when the joint comes into operation as a result of applying a lateral force to the portion of the post above the joint.
  • the bias of the core body 2 in the sleeves results in that their opposing end faces are always kept pressed against each other with a given force caused by the bias.
  • the bias is selected such that the joint will flex when the post is subjected to forces from different directions, but will regain its straight configuration immediately afterwards.
  • the spring movement is, of course, directly dependent on the magnitude of the bias or pretension.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Materials For Medical Uses (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (6)

1. Poteau comprenant deux tubes (6), dont les extrémités en regard sont reliées par un joint flexible à ressort qui comprend un corps élastique allongé plein (2) entouré par deux éléments annulaires (4, 4; 14,16; 22, 24, 28, 30) dans lesquels le corps élastique allongé plein (2) est fixé avec une précontrainte de tension, et sur lesquels les tubes respectifs (6) du poteau sont montés par glissement, les faces d'extrémité de ces éléments annulaires (4, 4; 22, 28) qui sont tournées l'une vers l'autre faisant partie dudit joint flexible en étant appuyées l'une sur l'autre sous l'action de la contrainte de prétention appliquée au corps élastique allongé plein (2), caractérisé en ce que ce corps élastique allongé plein est une tige (2) de matière polymère, qui dans une mesure substantielle remplit la section transversale des tubes (6) du poteau, en ce que les deux éléments annulaires (4, 4; 14, 16; 22, 24, 28, 30) consistent chacun en un tube, en ce qu'une partie de la longueur de la tige (2) est entourée par ces deux tubes (4, 4; 14,16; 22, 24, 28, 30) auxquels la tige (2) est directement fixée à ses extrémités qui sont les plus éloignées l'une de l'autre au moyen d'au moins un rivet (12; 20; 26, 34) passant à travers la tige (2) en chaque point de fixation.
2. Poteau selon la revendication 1, caractérisé en ce que la longueur des tubes (14,16; 28, 30) est règlable pour ajuster la précontrainte de tension de la tige (2).
3. Poteau selon la revendication 1 ou 2, caractérisé en ce que la tige (2) est également fixée directement à un ou aux deux tubes 6 du poteau.
4. Poteau selon l'une des revendications 1 à 3, caractérisé par deux rivets dont les directions se croisent mutuellement au moins en un point de fixation.
5. Poteau selon l'une des revendications précédentes, caractérisé en ce que le joint comprend une face d'extrémité annulaire de chacun des tubes (6) du poteau et/ou des tubes (4, 4; 22, 28) constituant les éléments annulaires, ces faces étant pressées l'une vers l'autre sous l'action de la précontrainte de tension appliquée à la tige (2), une face annulaire d'extrémité se terminant par un épaulement externe (36) entourant l'autre face annulaire d'extrémité, qui est formée par une bride (38) en saillie radiale ayant une hauteur de même amplitude que celle de l'épaulement.
6. Poteau selon l'une des revendications précédentes, caractérisé en ce que le ou chaque tube (6) du poteau est monté par glissement sur le tube respectif (4) constituant l'élément annulaire, en venant engager un épaulement (11) de ce tube.
EP83901109A 1982-03-22 1983-03-18 Poteau avec raccord elastique Expired EP0114829B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83901109T ATE33944T1 (de) 1982-03-22 1983-03-18 Pfosten mit federverbindungsstueck.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8201803 1982-03-22
SE8201803 1982-03-22
SE8203369A SE451180B (sv) 1982-03-22 1982-06-01 Stolpe med fjedrande led
SE8203369 1982-06-01

Publications (2)

Publication Number Publication Date
EP0114829A1 EP0114829A1 (fr) 1984-08-08
EP0114829B1 true EP0114829B1 (fr) 1988-05-04

Family

ID=26658116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901109A Expired EP0114829B1 (fr) 1982-03-22 1983-03-18 Poteau avec raccord elastique

Country Status (5)

Country Link
EP (1) EP0114829B1 (fr)
DE (1) DE3376469D1 (fr)
FI (1) FI76407C (fr)
NO (1) NO152157C (fr)
WO (1) WO1983003361A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557221B3 (fr) * 1983-12-27 1986-03-28 Metal Plastic Moyens d'articulation entre deux elements tubulaires coaxiaux
EP0240595A1 (fr) * 1986-04-03 1987-10-14 Hans Hinterholzer Piquet de slalom articulé
US4862823A (en) * 1988-05-05 1989-09-05 Flexstake, Inc. Bendable marker and method of marking
IT220298Z2 (it) * 1990-11-21 1993-09-16 S P M Palo snodato per piste da sci, con la parte fuoriterra in materiale morbido.
FR2689777B1 (fr) * 1992-04-14 1994-06-03 Dalloz Bourguignon Jean Claude Piquet escamotable pour pistes de slalom.
US7794175B2 (en) 2007-07-24 2010-09-14 Mbw Technologies Delineating pole having an anchoring base and spring cartridge for snow based applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044032A5 (fr) * 1969-05-06 1971-02-19 See Jacques
DE2206443A1 (de) * 1972-02-11 1973-08-16 Kurt Konrad Gustav Karl Nagl Sperr- und begrenzungspfahl, selbstaufrichtend

Also Published As

Publication number Publication date
NO152157B (no) 1985-05-06
FI834192L (fi) 1983-11-16
EP0114829A1 (fr) 1984-08-08
NO834267L (no) 1983-11-21
FI76407C (fi) 1988-10-10
WO1983003361A1 (fr) 1983-10-13
FI76407B (fi) 1988-06-30
FI834192A0 (fi) 1983-11-16
NO152157C (no) 1985-08-14
DE3376469D1 (en) 1988-06-09

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