FR2655604A1 - Double pneumatic thrust cylinder for self-steering axle, designed to obtain a greater degree of turning of the stub axles - Google Patents
Double pneumatic thrust cylinder for self-steering axle, designed to obtain a greater degree of turning of the stub axles Download PDFInfo
- Publication number
- FR2655604A1 FR2655604A1 FR8916520A FR8916520A FR2655604A1 FR 2655604 A1 FR2655604 A1 FR 2655604A1 FR 8916520 A FR8916520 A FR 8916520A FR 8916520 A FR8916520 A FR 8916520A FR 2655604 A1 FR2655604 A1 FR 2655604A1
- Authority
- FR
- France
- Prior art keywords
- double pneumatic
- rods
- pneumatic cylinder
- double
- self
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/06—Steering specially adapted for trailers for backing a normally drawn trailer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/04—Steering specially adapted for trailers for individually-pivoted wheels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
Description
La présente invention,concerne un double vérin pneumatique, dont le rôle est celui de servir de butée alternativement aux fusées d'un éssieu auto-directeur,pouvant fonctionner en marche avant et en marche arrière.The present invention relates to a double pneumatic cylinder, the role of which is to serve as a stop alternately with the rockets of a self-steering axle, capable of operating in forward and reverse directions.
L'actuelle utilisation des vases,de type vases de frein de camion,retenue jusqu'ici,donne satisfaction,mais la course de poussée limitée de ces appareils,empêche un braquage suffisant et n'autorise pas de profiter de l'avantage d'une plus grande poussée par effet de levier,des tirants (3),d'une longueur appropriée,sur les fusées(2).The current use of vases, of the type of truck brake vases, retained so far, is satisfactory, but the limited thrust stroke of these devices, prevents sufficient turning and does not allow to take advantage of the advantage of greater leverage, tie rods (3) of appropriate length on the rockets (2).
Pendant le fonctionnement,un des deux doubles vérins de l'éssieu auto-directeur,est sous préssion d'air maximum, pour constituer la butée directionnelle recherchée.During operation, one of the two double cylinders of the self-steering axle is under maximum air pressure, to constitute the desired directional stop.
Inversement l'autre double vérin,doit pouvoir se rétracter pour permettre le pivotement des fusées.Conversely, the other double cylinder must be able to retract to allow the rockets to pivot.
Cet écrasement du poumon caoutchouc(l7) du double vérin semi-dégonflé,même s'il permet aux tiges (14)-(15) et (22),une course plus importante de celle du vase qu'il remplace,ne pourrait,cependant,encore pas suffir,pour obtenir un braquage de 300,voir 40sans cette rupture(20) des tiges de vérin en (14)-(15),qui permet a celle de ces tiges,qui est rattachée a la fusée(2),de la suivre vers l'exterieur.This crushing of the rubber lung (17) of the semi-deflated double cylinder, even if it allows the rods (14) - (15) and (22), a greater stroke than that of the vase it replaces, could not, however, still not enough, to obtain a deflection of 300, see 40 without this break (20) of the cylinder rods in (14) - (15), which allows that of these rods, which is attached to the rocket (2) , to follow it towards the outside.
Grace a des rebords(ll),servant de butée a la tige(l4) et (22),mais aussi de prise aux soufflets(en caoutchouc ou autre) (12) et (5),il est possible de protéger des éjections,le mouvement des tiges(14)-(15) et (22).Thanks to the flanges (ll), serving as a stop for the rod (l4) and (22), but also as a grip for the bellows (rubber or other) (12) and (5), it is possible to protect from ejections, the movement of the rods (14) - (15) and (22).
Des graisseurs(13),sont prévus pour injecter de la graisse d'entretient. Lubricators (13) are provided for injecting maintenance grease.
Des silentblocs boulonnables(24),(sans entretient),servent d'ancrage aux tirants(l9),du double vérin,sur le fourreau(7) de l'éssieu(4).Boltable silentblocs (24), (without maintenance), serve as anchoring to the tie rods (l9), of the double jack, on the sleeve (7) of the axle (4).
Les tubes(16),de ce double vérin pneumatique,sont chemisés par un contretube interne en nylon-téflon,pour ne pas subir d'usure et pour permettre un meilleur glissement des tiges(l4)-(15) et (22).The tubes (16) of this double pneumatic cylinder are lined with an internal nylon-teflon counter-tube, so as not to be subject to wear and to allow better sliding of the rods (14) - (15) and (22).
La prise d'air comprimée(l8),sert a gonfler ou vider les poumons en caoutchouc(l7),lors du fonctionnement.The compressed air intake (18) is used to inflate or empty the rubber lungs (17) during operation.
La Fig.l,montre le comportement en ligne droite,d'un éssieu auto-directeur,équipé des doubles vérins pneumatiques de fonctionnement.Fig.l shows the behavior in a straight line, of a self-steering axle, equipped with double pneumatic operating cylinders.
La Fig.2,montre ce même éssieu dans un virage.Fig. 2 shows this same axle in a bend.
Le double vérin pneumatique du haut,sert ici de butée aux tiges(l5)-(14),et donc,aux tirants(3),des fusées(2), ou ces tiges sont rattachées(24).The double pneumatic cylinder from the top, here serves as a stop for the rods (15) - (14), and therefore, to the tie rods (3), rockets (2), or these rods are attached (24).
Le double vérin du bas de cette Fig.2,se trouve lui au repos,pour ne pas empêcher le libre mouvement des tiges(l4) (15) et (22) et,donc,des fusées(2),qui pourront pivoter autour de l'axe(25).The double jack at the bottom of this Fig. 2 is located at rest, so as not to prevent the free movement of the rods (14) (15) and (22) and, therefore, the rockets (2), which will be able to pivot around of the axis (25).
La barre d'accouplement(6),relaye les fusées entre elle.The coupling rod (6) relays the rockets between them.
La Fig.3,montre un éssieu auto-directeur(4),pris dans son fourreau(7),qui est équipé d'une plaque de glissement nylon-téflon(lO) ,et des lames de ressort(8),retenues par des brides(9).Fig.3 shows a self-steering axle (4), taken in its sheath (7), which is fitted with a nylon-teflon sliding plate (10), and spring blades (8), retained by flanges (9).
La Fig.4,montre un agrandissement des doubles vérins pneumatiques,concernés par cette demande de brevet. Celui du haut,qui est sous pression,sert de butée. Celui du bas qui est au repos(donc presque vidé d'air),permet le libre déplacement des tiges(l4)-(15) et (22),et ce, même au delà de la course d'écrasement du poumon caoutchouc(l7),grâce au point de rupture(20) des tiges rattachées aux fusées(2). Fig.4 shows an enlargement of the double pneumatic cylinders concerned by this patent application. The upper one, which is under pressure, serves as a stop. The lower one, which is at rest (therefore almost emptied of air), allows the free movement of the rods (14) - (15) and (22), even beyond the crushing stroke of the rubber lung ( l7), thanks to the breaking point (20) of the rods attached to the rockets (2).
Ce double vérin Fig.4,se monte et se démonte facilement par déboulonnement des silentblocs(24),et par défilement des tiges(l4),hors de leur tube(16). This double jack Fig.4, is easily assembled and disassembled by unbolting the silentblocs (24), and by scrolling the rods (14), out of their tube (16).
De conception simple,économique et fiable,ce double vérin pneumatique,se revéle ici,comme le meilleur moyen de fonctionnement pour éssieux auto-directeurs marche-avant marche-arrière. Simple, economical and reliable design, this double pneumatic cylinder is revealed here, as the best means of operation for axles self-steering forward-reverse reverse.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916520A FR2655604A1 (en) | 1989-12-08 | 1989-12-08 | Double pneumatic thrust cylinder for self-steering axle, designed to obtain a greater degree of turning of the stub axles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916520A FR2655604A1 (en) | 1989-12-08 | 1989-12-08 | Double pneumatic thrust cylinder for self-steering axle, designed to obtain a greater degree of turning of the stub axles |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2655604A1 true FR2655604A1 (en) | 1991-06-14 |
Family
ID=9388482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8916520A Pending FR2655604A1 (en) | 1989-12-08 | 1989-12-08 | Double pneumatic thrust cylinder for self-steering axle, designed to obtain a greater degree of turning of the stub axles |
Country Status (1)
Country | Link |
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FR (1) | FR2655604A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1557305A1 (en) * | 2004-01-20 | 2005-07-27 | Crossmobil GmbH | Vehicle trailer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6935369U (en) * | 1969-09-09 | 1970-11-12 | Sauer Achsenfab | DEVICE FOR STABILIZING TRAILING AXLES |
GB1225481A (en) * | 1966-12-14 | 1971-03-17 | ||
FR2303681A1 (en) * | 1975-03-11 | 1976-10-08 | Quigniot Andre | ARM SUSPENSION DEVICE WITH DEFORMABLE QUADRILATER FOR MULTI-WHEEL TRAIN OR HALF-AXLE SELF-FOLLOWING ARMS |
FR2304486A1 (en) * | 1975-03-18 | 1976-10-15 | Tomarelli Giovanni | Self tracking rear wheels for trailer - has wheels pivoted on axle and steered by hydraulic reaction elements |
DE3833181A1 (en) * | 1988-09-30 | 1990-04-05 | Josef Paul | Refitting device for the leading and trailing axles of vehicles |
-
1989
- 1989-12-08 FR FR8916520A patent/FR2655604A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1225481A (en) * | 1966-12-14 | 1971-03-17 | ||
DE6935369U (en) * | 1969-09-09 | 1970-11-12 | Sauer Achsenfab | DEVICE FOR STABILIZING TRAILING AXLES |
FR2303681A1 (en) * | 1975-03-11 | 1976-10-08 | Quigniot Andre | ARM SUSPENSION DEVICE WITH DEFORMABLE QUADRILATER FOR MULTI-WHEEL TRAIN OR HALF-AXLE SELF-FOLLOWING ARMS |
FR2304486A1 (en) * | 1975-03-18 | 1976-10-15 | Tomarelli Giovanni | Self tracking rear wheels for trailer - has wheels pivoted on axle and steered by hydraulic reaction elements |
DE3833181A1 (en) * | 1988-09-30 | 1990-04-05 | Josef Paul | Refitting device for the leading and trailing axles of vehicles |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1557305A1 (en) * | 2004-01-20 | 2005-07-27 | Crossmobil GmbH | Vehicle trailer |
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